During a drought, 3 inches of water evaporated out of a lake every hour. Which integer represents the water loss for a 7 hour period during the drought

A. - 21

B. - 10

C. - 4

D. 21

This spring it rained a total of 11.5 inches. This was 3 inches less than last spring. Write and solve an equation to find the amount of rain last season.

What would be the solution to the set {-20, 9} (multiple answers) A.) x^ - 9x + 20 = 0 B.) x^ - 11x + 180 = 0 C.) x^ + 11x - 180 = 0 D.) (x + 20) (x+9) = 0 E.) (x - 20) (x + 9) = 0 F.) (x - 5) (x - 4) = 0

What is the slope of a line parallel to 10x - 5y = 8? What is the slope of a line parallel to 4x + 2y = 5? What is the slope of a line perpendicular to x - 3y = 9? What is the slope of a line perpendicular to x - 5y = - 10?

What is 14,000,000 in scientific notation?

The equation f (x) = 2x²-x + 4 has roots a and B. (a) Find an equation with roots (a-1) ² and (B-1) ². (ps. the a is alpha and b is beta)

the expression 2 * L + W equals the perimeter of the rectangle write an equivalent expression using the distributive property

Expand the polynomial (x2 - y2) 2 + (2xy) 2, then simplify it by combining like terms.

Square root of 45 rounded to 0.05

Hope drove 145 miles in 2.5 hours. what was her speed in miles per hour

jaxon earns $30 each month he decides to give $5 to an animal charity he also decides to buy 3 books at a sale for $5 5 each