What number when multiplied by 113 has a product of 1

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1