Wich number is the principal square root of 49 a.7 b.-7 c. 7 -7 d. there is no principled square root

What is the square root of 45? (step by step working plz)

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250