The price of an 18​-minute phone call is 1.60​$. What is the price of an 18​-minute phone​ call?

Asquare has a perimeter of sixteen centimeters. what is the length of each of its sides? a. 8 cm c. 9 cm b. 4 cm d. 10 cm select the best answer from the choices

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Which function has an inverse function? a. f(x)= |x+3|/5 b. f(x)= x^5-3 c. f(x)= x^4/7+27 d. f(x)= 1/x²