Please help.
Is algebra.

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

Mariano delivers newspaper. he always puts 3/4 of his weekly earnings in his savings account and then divides the rest equally into 3 piggy banks for spending at the snack shop, the arcade and the subway