No files pls. Im not the best at the mad, so can i have the answer and the explanation. (iim resting out of 6th grade)

Solve the equation using the zero-product property. -3n(7n - 5) = 0 a. 0, -5/7 b. -1/3, -5/7 c. -1/3, 5/7 d. 0, 5/7

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?