Write a percent equation that can be used to solve the following problem: 820 is 20% of what number? A. n = 0.2 x 820
B. 820 = 0.2 × n
C. 0.2 = n × 820
D. none of these

Which sentence describes why polygon mnop is congruent to polygon jklp? a. polygon jklp maps to polygon mnop through a translation. b. polygon jklp maps to polygon mnop through a rotation. c. polygon jklp maps to polygon mnop through a dilation. d. polygon jklp maps to polygon mnop through a stretch.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Write the expression 7x^3-28xy^2 as the product of 3 factors