Plz help me and explain how u get what u get so i can fully understand!

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

What is the value of x in the equation7x+2y=48 when y=3

Find │7│. a. 1 over 7 b. –7 c. 7 asap i always mark brailiest who me so