Convert 0.31 to binary then back to base 10 and work out the error

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m

What is the rate for one gallon of gasoline