Factor 3/4 out of 3/4z+6

Please help!!!

Volume of cylinder with a radius of 8cm and height of 25 cm

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total