In a bag, there are 10 black plastic chips, 7 yellow, 5 red, and 3 green. two chips are drawn at random with replacement.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

What makes a trapezoid an isosceles trapezoid?

The main cable of a suspension bridge is modeled by the equation y= 0.0048(x - 50)2 + 6. at what horizontal distances from the left support is the cable 10 ft above the roadway?