Evaluate -2 + 7 + (-4)

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?