Ten minutes after jumping into the ocean, a diver is 25 feet below the surface. After 30
minutes, the diver has descended 75 feet. How
fast was the diver descending?

a) 0,0; 1,1; and 2,2

step-by-step explanation:

these have the exact same coordinates, thus they are the correct function.

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

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