If *insert female name here* lifts the bar 10 times in 20 seconds, how much power did she use?

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )

Which equation can be solved to find x the measure of jk in the apex