PLZZ HELP On a map of a school, 3 inches represents 9 ft how many inches would represent 1 foot 6 inches.

What is the slope of a line that is perpendicular to y = 3x + 1

Solve the system of equations. y= 2x y= x^2 - 15

What is the explicit formula for this sequence? -7, -4, -1, 2, a.) an = 8 + (b - 1)3 b.) an = -7 + (n - 1)3 c.) an = 3 + (n -1) (-7) d.) an = -7 + (n - )