What are the factors of the expression?

7*(x+y)

choose all that are correct

a) 7
b) x
c) y
d) 7x
e) xy
f) x+y

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

1: 4 if the wew 35 surfboards at the beach how many were short boards?