Evaluate the following expressions for p = 21.

a) 3p + 52
b) 432 - 2p

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.