The temperature of a city changed by −20 degrees celsius over a 4-week period. the temperature changed by the same amount each week. part a: write an expression to show the average change in the temperature of the city each week. part b: simplify the expression and explain, using words, what your answer means.

Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)

Which function is odd check all that apply a. y=sin x b. y=csc x c. y=cot x d. y=sec x

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?