Select the correct answer.

Which expression is equivalent to

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two