45(x-7)=90 what would the value of c on this equation be?

Anna is no more than 3 years older than 2 times jamie’s age. jamie is at least 14 and anna is at most 35. which system of linear inequalities can be used to find the possible ages of anna, a, and jamie, j?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8