Stephanie has $152 in the bank. She withdraws $20 Then she deposits $84 Write an addition expression to represent this stiuation then find the sum. please help me

Valentino starts with a population of 1,500 amoebas that increases 35% in size every hour for a number of hours, h. the expression 1,500(1+0.35)h finds the number of amoebas after h hours. which statement about this expression is true? a. it is the initial population raised to the growth factor after h hours. b. it is the sum of the initial population and the percent increase. c. it is the sum of the initial population and the growth factor after h hours. d. it is the product of the initial population and the growth factor after h hours.

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28