2) Mackenzie just started training for a marathon. According to her plan, she must run 19 miles the first week and 25 miles the second week. What is
the percent increase?

Remmi wrote the equation of the line y=⅓(x+2) he solved for x and got x=3y-2 which of the following is an equivalent equation for x? a. x=y-11/3 b. x=y+7/3 c. x=3(y-⅔) d. x=3(y+⅔)

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

Interpret the following expression (5y^2-7)^3/(2y)^2