Marsha has $25 and is saving $12 per week to go on a trip if she wants to have least $425 when she leaves what is the minimum weeks that she must save. How would I make an equation out of this?

Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]

329 people went to an amusement park. $906 was made that day. $1.5 per kid. $4 per adult. how many kids and adults went?

Petra jogs 5 miles in 40 minutes. at this rate, how long would it take her to jog 7 miles? petra would take minutes to jog 7 miles. petra jogs 5 miles in 40 minutes. at this rate, how long would it take her to jog 7 miles? petra would take minutes to jog 7 miles.