PLEASE NEED HELP ASAP

There will be 7 people at a party.if each person will eat 5/8 of a pound of chicken, how many pounds of chicken are needed?

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form