50 POINTS AND WILL GIVE BRAINLIEST
Find the inverse of function f.
f(x)=9x+7

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

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! )