Given f(x)=3x and g(x)=1/x+3 which value is in the domain of f(g)

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.