Which line is perpendicular to 5x + 4y = 8? a) 4y = –5x + 4 b) 5y = 4x + 5 c)5y = –4x –15 d)4y = 5x + 12

Arestaurant charges $100 to rent its banquet room for an event. it also charges $15 to serve dinner to each guest. write an equation for the total cost of the banquet room in terms of the number of guests. deine your variables. what is the total cost of the banquet room for 20 guests?

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122