Colin is eating lunch at a restaurant and wants to leave a tip. If the meal costs m dollars, and he decides to leave a 15% tip, which expression represents the total that he will pay? A. m + 0.15m
B. m –0.15m
C. m –0.85m
D.1.15m + m

Precalculus question, image attached.

Acaterer charges $500 plus $30 per guest to cater a wedding. walt and traci don't want to spend more than $8000 on catering. write and solve an inequality in terms of the number of guests, g, that can be invited. a) 30g ? 8000; g ? 267 b) 500g < 8000; g < 16 c) 500 + 30g < 8000; g < 250 d) 500 + 30g ? 8000; g ? 250

Rounded to the nearest tenth, what is the value of x