Salma is y years old now. Her brother is 7 years younger than her. What was their total ages in four years ago​

2men and 7 boys can do a piece of working 4 days.it is done by 4 men and 4 boys in 3 days how long would it take for 1man or one boy to do it alone

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2