A family spent $65 on dinner and left a 20% tip. What was the total cost of their meal? A. $85

B. $78

C. $67

D. $13

B, $78

Step-by-step explanation:

If the tip is 20% of the dinner cost, then we have to first find what is 20% of 65.

20% x 65 = 13. So the tip for the dinner is 13 dollars.

Now we have to add it to the original dinner cost.

65 + 13 = 78.

Therefore, the total cost of their meal is 78 dollars. So the answer is B, $78!

A

Step-by-step explanation:

the total cost of their meal it usally means how much in total so we add 65+20 = 85

(1,4) is on graph of f(x)

f(1) = 4

so 1/4 f(x)

1/4 f(1)

1/4. ×4

1

so point for function 1/4. f(x) is (1,1)