I have to solve for X in this question. Im not sure on how to do it.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

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