Maria has 8n-30 marbles, her brother has 5n marbles. How many more marbles does Maria have than her brother

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?

X is a normally distributed random variable with a mean of 11 and a standard deviation of 2.0. find the value of x for which 70.54% of the area under the distribution curve lies to the right of it. (note: the diagram is not necessarily to scale.

What is the root of this equation? 2x^2 - 4x + 9 = 0

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.