All-purpose flour costs $0.53/lb. how much would 4.5 lb of flour cost? a) $1.09 b) $1.50 c) $2.38 d) $2.39

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Match each expression with its simplified form.

If the value of x increases by 5, how does the value of m(x + 3) change? a) it increases by 5m. b) it increases by 8m. c) it decreases by 5m. d) it decreases by 8m.