Rhonda rode her bike 25 miles in 4.5 hours. Jared rode his bike 27 miles in 4.86 hours. Are these rates proportional

Express -5 2/5 as an improper fraction.

Why is x= 4 a solution to the proportion 14/x 56/1 6

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?