***I WILL GIVE BRAINIEST TO THE CORRECT ANSWER** Translate the description as an algebraic expression:
double the product of 15 and k

Given: f(x) = 2x + 5 and g(x) = x2 and h(x) = -2x h(g(f( = x2+ vx+ x + y

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.