Fran has "buy one get one free" ticket to the comedy club. she is bringing 7 people including herself. if the regular price is $10.75 per person, how much change will she have left from $100 bill?
a) $32.25
b) $57.00
c) $43.00
d) $75.25

Lilianna uses 3/4 calories per minute just by sitting. she uses 1 more calorie per minute by walking. lilianna uses a total of 12 1/4 calories walking to the park. lilianna uses the equation, d(.75+1)=12.25 to represent the situation. what does the variable d represent in the equation?

Can someone answer this question for me

Collin did the work to see if 10 is a solution to the equation r/4=2.4