James is x years old now and the sum of his age is and his brothers age is 10. 1) How old is James brother?
2) How old was James 3 years ago?
3) How old was James's brother 3 years ago?
4) 3 years ago, James's brother was three times older than James. Use this information to write an expression
5) Solve the equation from question 4 to find the age of both boys.
I know it a lot but I really need some help right now, if you do help I just want to say thank you in advance.

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Multiply. write your answer in simplest form. 3/8 x 5/7

Which expression is equivalent to (fg)(5)