What are the measures of x y and z

Three times the sum of a number and seven is negative thirty-six. what is the number?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Lana's family entered a 5-kilometer race lana's average step length is about 0.5 meter how many steps will she need to take the finish