there are 4/7 as many girls as there are boys. There are 66 students in the fifth grade. How many students are girls?

What is 5x^2 - 15x - 20

24 disc four display racks hold 32 disc how many racks are needed

Kristyaks Lonnie to think of a number at 3 to it multiply The Sound by two and then subtract 6 letter n stand for Lonnie starting number which expression represents Lonnie's final number

What is the equation of the line that passes through (4, 3) and (2, 2) ? y=2x-2 y=1/2x+2 y=1/2x+1 y=1/2x+2 1/2

If a=4, then 2a + 72.6 - a=

Are 5/10 and 1/6 equivalent ratios

How to subtract two polynomials

What is 625/18 as a whole number or an improper fraction

Two systems of equations are shown. The first equation in system B is the original equation in system A. The second equation in system B is the sum of that equation and a multiple of the second equation in system A.

Whats the formula of 90 degrees