Find the precent of markup if the cost to the store is $250 and the store is selling the TV for $312.50

Find the vertex of the function given below y=x^2-6x+1

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41