Aplumber charges $55 for every service call, plus $20 for every hour. if you receive a bill for $150, how many hours did the plumber work at your house?

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

What is the sum of these mixed numbers 4 2/3+ 3 1/9

What is the probability of getting heads when flipping a coin and getting a number greater than or equal to 4 when rolling a single die?