Which pair of lines are perpendicular to one another?
-3x+2y=10 and 3y=-2x+12
7x+4y=20 and y–3=-4/7
x=4y+4 and 4x+4y=4
2x+5y=45 and y+2/5x=-9

Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as