In 10 minutes a heart can beat 700 time at this rate in how many minutes will a heart beat 140 time

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

What does x = in this equation x+3+2x=x+5

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