Emily bought 412 appetizers and she invited 22 people to his party. Use compatible numbers to estimate the number of appetizers each guest can
have.
OA) 10
OB) 15
OC) 20
OD 25

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?