What power of 10 should you to multiply by the divisor by the divisor so that the divisor is changed to a whole number?

On their way home from school. terri and evie started walking out for two blocks and then running for three blocks and then repeating that pattern. if they can walk a block in 2 minutes and run a block and 45 seconds how long will it take them to go 18 blocks?

Could someone with number 1 and 2

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).