Dan has a total of 12 bill in his wallet.
some are $5 bills and the rest are $10 bills.
the total value of the 12 bills is $115.
how many $5 bills and how many $10 bills does he have?

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

Ineed me i stuck and i don’t want to get it wrong