There were 40 students enrolled in the school photography club in the fall and 28 students enrolled in the spring. What is the percent decrease in the number of students enrolled in the photography club?

-30%

Step-by-step explanation:

40 in fall, 28 in spring.

Percentage: p=(28-40)/40×100=

-12/40×100=-12/4×10=-30%

The minus sign indicates 'decrease'.

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

a.)the line for function b is steeper