Which equation has as one of its solution, the solution to the system of equations ?
4x+2y=10
3x-5y=14
1) 7x-3y=21
2)7x-3y=22
3)7x-3y=23
4)7x-3y=24
me.

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Anyone know these questions? i need ,.

While on a train trip, marsha noticed that there were 35 people in her train car. after the next stop, there were only 21 people in her car. if p represents the percent decrease in the number of people in marsha's train car, what is p?