Find the greatest common factor of 30g4h3 and 42g4h2

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Use the equation and type the ordered-pairs. y = 2 ^x