3(x+7)+2 (x-3)=50if b is between a and c, find the value of 'x' and bc

How do you find principle and simple interest

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

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