Four times the sum of a number and eight times the number is 252. Find number

Factor completely 81m^2-169

On a number line, the distance from zero to - 9 to 9? 0+9=9 |-9|=-9 |-9|=9 9^2=81

Find f (x) if it is known that f (x-5) = 1.2x-6. show work will give brainliest

There are 30 books in a bookcase. The books in the bookcase are all poetry, history, and art books. Ten of the books are art books. There are 6 fewer poetry books than history books. How many poetry books are in the bookcase?

What's the sum of 6ft feet 10 in and 8 ft 9 inches

How many solutions does 25-4x=15-3x+10-x have

A certain measurement must be between 3.64 and 4.28 centimeters. Which number is greater than 3.64 and less than 4.28?

Using the exponential regression model, which is the best prediction of the wavelength of the key that is 8 above the A above middle C? 49.31 cm 49.44 cm 49.73 cm 49.78 cm

What single percentage change is equivalent to a 15% decrease followed by a 16% decrease?

Use substitution to solve the linear system of equations. x = 4 -y = 1/2x (4, - 2) (-2, 4) (4, 2) (2, - 4)