HELP PL

Which expression is equal to x + (y + z)? (5 points)

xy + z

xy + xz

(x + y) + z

(x + y) ⋅ z

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x

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! )