The school cafeteria has 19 round tables and 13 rectangular tables. Each round table has 3 chairs, and each rectangular table has 7 chairs. How many chairs are there in all?
WILLL GIVE BRAINLIST!!!

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

If you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain.