If a square has an area of 324 ft what is the length of each side

The table above shows approximate conversions from gallons to liters. what is the value of x?

What is the y-intercept of the line given by the equation

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2