The image shows the Moon in relation to the Earth,

How do i put 3(x+7) in distributive property

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42