Is the graph of the function concave up or concave down how do you know ? f(x) = 2(x-4):+ 3

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

10 points? me . its important ‼️‼️

Olive's solar powered scooter travels at a rate of 30 miles per hour. what equation can she use to calculate her distance with relation to the time she traveled? h=hours m=miles 1. h=m+30 2. m=30h 3. m=h+30 4. h=30m