1. A tank has 25 gallons of chemicals in it. Chemicals were added to the tank at a rate of 7
gallons per second. Which equation models the relationship between t the number of
gallons of chemicals, and w, the number of seconds chemicals are being added to the
tank?
A T = 25w +7
B. T= 32W
C. T=W + 32
D. T = 7w + 25

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 − 24x 8,000 + 2x 8,000 − 2x

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?