If Kevin gets paid for $3$ hours, gets $1$ weekly allowance, rides the bus $6$ times, and has $0$ dollars at the end of the week, how many times did he buy dinner? Justify your answer.

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%