70 decreased by 80% in math

Bobby has 3 times as many model spaceships as his friend Sylvester does. Bobby has 21 spaceships. How many model spaceships does Sylvester have?

Triangle XYZ is shown on the coordinate plane below: Triangle XYZ on the coordinate plane with ordered pairs at X 1, negative 3, at Y 3, 0, at Z negative 1, negative 1 If triangle XYZ is reflected across the line y =

A square has a perimeter of 36 inches. How long is each side? 4 inches 6 inches 9 inches 12 inches

Which expression is equivalent to (2x + 4) 2 - (2x2 + 6) ? A) 2x2 + 16x - 2 B) 2x2 + 16x + 10 C) 4x2 + 16x + 10 D) 4x2 + 16x - 2

Is 33% greater than 0.4

Milena just turned 11 years old. How old was she 2 1/4 years ago?

the video store sold 5 movies for 12 dollars. How many dollars will be earned

At the beginning of this month, the balance of Nelson's checking account was $523.12. So far this month, he has received a paycheck via direct deposit of $348.30, been charged a monthly service fee from his bank of $10.

Which if the following is a factor of x^3-64

Which of the following is another way to show the ratio 13 to 27