If the price of a stock decreases by 20%, and then by an additional 25%, by what percentage has the price At Mattress Shop, 75% of the mattresses are memory foam and 20% of the mattresses are extra firm. Of
the total mattresses at Mattress Shop, 12% are extra firm memory foam mattresses. What percentage of
decreased from its original value?
11.
40
B. 45
C. 50
D. 55
2.
the total mattresses are not extra firm non-memory foam mattresses?
Math
E. 8

F.17
G. 63
H. 80

If i have one apple and give you the apple, how many apples do i have?

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.