Molds of square base for 28 cubic centimeters

4x and 6y

im not sure though

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation:

answer4 to the second power is 16

and 4 to the third power is 64,

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a