What is the value of 5a plus 2 (a plus b) when a equal 4 and b equal 2

What is the value of the expression - 5x4 when x = - 2? A. -40 B. 40 C. 80 D. -80 I think its D. - 80?

Maria invested 2000 in an account that earns 4.5% interest, compounded annually. The formula for compound interest is A (t) = P (1+i) ^t. How much did maria have in the account after 5 years

X-9/15=2x-9/10 Solve the proportion

Determine whether the given ordered pair is a solution of the equation (0,5); 5x-3y=15

The city bus goes 18 miles in 30 minutes. How far doescit go in 10 minutes?

The solution to the system of equations shown is (2, 0). 3x - 2y = 6 x 4y = 2 when the first equation is multiplied by 2, the sum of the two equations is equivalent to 7x = 14 which system of equations will also have a solution of (2, 0) ?

A soccer field is 345 feet long. What is the length of the field in yards?

What is an expression for the sixth term of the pattern? (2, 5, 8, 11, 14)

A trapezoid has an area of 4 and a height of 1. what are the possible whole number lengths for the bases?

Does the equation y=8x+5 show a proportional relationship between x and y? Explain.