Mario is planning a charity dinner. Each table costs $50 and each chair costs $7 to rent. The other costs of the dinner are $475. Let t represent the number of tables and let c represent the number of chairs. Write the expression to represent the situation and explain how you got your answer.

Cost of Dinner = 50t + 7c + 475

Step-by-step explanation:

"t" represents tables and they cost $50 each, so the algebraic expression would be "50t" ($50 times the number of tables).

Same applies to chairs; "7c" ($7 times the number of chairs).

The $475 represents the other costs added to the total.

So the expression to represent this problem would be at the total cost of the charity dinner is 50t (50 dollars per table) plus 7c (7 dollars per chair) and $475 for other costs.

where is the triangle?