Ava’s turtle is half as old as her parent. In 10 years, her total will be 3/4 as old as her parent. Right in equation to represent the situation how old is .Ava’s turtle?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol