How would you explain to a friend how to solve the following problem using substitution?

-7x + 2y = -5
y = -7x + 8

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below. the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Is the power produced directly proportional to the wind speed, give reasons for your answer?