My brother is 5 years older than me. my sister is 3 years younger than me. d how old will my sister be when i am n years old?

This question consists of 2 parts, a and b. marco got a quotient of 70 when he divided 49 by 0.07. part a what is the correct answer to this problem? part b what mistake did marco make? you!

We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)