Solve the system of linear equations by substitution.

-2x-5y=3

3x+8y=-6

Aldo paid $13.88 for a 1.98 - pound bag of shrimp at one store. The following week, he paid $38.99 for a 5.46 - pound bag at another store. Find the unit price for each bag. Then state which bag is the better buy based on the unit price.

Kat is painting the edge of a triangular stage prop with reflective orange paint. The lengths of the edges of the triangle are (3x - 4) feet, (x2 - 1) feet, and (2x2 - 15) feet.

Mike is saving money earned from a job. For every $20 Mike earns, he puts $4 into savings. Mike is going to graph his savings. The x-axis will be the amount earned, and the y-axis will be the money saved.

What is the equation of a circle centered at the origin with radius 15? O A. x+y=15 O B. x + y) - 225 O c. x + y = 15 O D. x2 + y2 = 225

If you deposit 1000 in a savings account with an intrest rate of r compounded annually then the balance in the account after 3 years is given by the function b (c) = 1000 (1+r) where is r written as a decimal?

Witch numbers are multiples of 5? Justify each answer by dividing. a) 15 b) 10 000 c) 137 d) 1001

In a right skewed distribution, a) the median equals the arithmetic mean b) the median is less than the arithmetic mean c) the median is greater than the arithmetic mean d) none of the above

Which two numbers have a least common multiple of 60? A. 12 and 15 B. 6 and 10 C. 6 and 15 D. 6 and 12

Solve 15 ≥ - 3x or 2/5 x ≥ - 2.

A box making machine makes cardboard boxes at a rate of 40 boxes per minute. How many minutes does it take to make 360 boxes?