translate into an algebraic expression: x is increased by 50% and decreased by 30% . What is the result?

The system of equations graphed below has how many solutions? y = 2x + 2

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 23 = 10x a. -1.93, 11.93 b. 1.93, -11.93 c. 1.93, 11.93 d. -1.93, -11.93

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120