If the decay of 742 mg of an isotope is described by the function A (t) = 742e-0.03t, where t is time in years. Find the amount left after 84 years. Round your answer to the nearest mg.

What does it mean when an investor buys stock in a company? a. the investor owns the company b. the investor is investing in the government c. the investor owns a share of the company d. the investor is rich

Joanna uses this exponential expression to determine the value of her savings account in five years. Which term represents the initial value of her account? 5,000 (1 + 0.04/12) 12t

Which expression is equivalent to this polynomial? 6x2 + 10x - 56= 4 (x - 4) - 2 (3x2 + 3x - 20) (3x2 + 5x - 28) + (3x2 - 5x - 28) 4 (x - 4) + 2 (3x2 + 3x - 20) (3x2 + 5x - 28) - (3x2 + 5x - 28)

At the movie theatre, child admission is $6.00 and adult admission is $9.10. On Friday, three times as many adult tickets as child tickets were sold, for a total sales of $999.00. How many child tickets were sold that day?

Suppose you are doing a 5,000 piece puzzle. you have already placed 175 pieces. Every minute you place 10 more pieces. Write and equation in slope intercept form to model the number of pieces placed. Is this relationship linear, how do you know?

Which division problem is equivalent to 2/5a. 5. divide 5 by 2c. cut 5 equal sections from a 2 foot long ribbond. split 5 cups of yogurt into 2 equal servings?

Translate into an equation and solve. what percent of 64 is 16? (do not round until the final answer. then round to two decimal places as needed.)

p: If every fourth card drawn is a spade, then 25% of the cards in a deck would be spades. If 25% of the cards in a deck are spades, then every fourth card drawn would be a spade.

An albatross is a large bird that can fly 400 kilometers in 8 hours at a constant speed. Using d for distance in kilometers and t for number of hours, an equation that represents this situation is d=50t.

Write a numerical expression for each verbal phrase. 1. The quotient of eight and two Translate each phrase into a algebraic expression. 2. Four inches less than kimi