The ratio of bous to girls in the school is 1 to 4. if there are 20 girls, how many boys are there?

The parabola opens: y=√x-4 (principal square root) up down right left

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9