Alexa is looking at T-Mobile for getting an Iphone. The promotion states that they will charge her $45 for activation
fee and $64 per month. Write a linear equation for the
amount T-Mobile will charge Alexa.

Cam bought some used books for $4.95. he paid $0.50 each for some books and $0.35 each for the others. he bought fewer than 8 books at each price. how many books did cam buy?

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.