How do you Convert .21 repeating to a fraction in simplest form?

Dr.cooper just started an experiment. he will collect data for 8 days. how many hours is this

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me