The sales tax in alex's city is 7.33%. he bought a video game system for $299, and 2 games each at $49 each. what was the total bill, to the nearest tenth?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

If f(x)=x+7 and g(x)=1/x what is (fog)(x)