What's the value of 42.8 +3.7y if y = 12 show all your work

For what value of (y) is 3^3/3^y =1/9

Mon wants to make 5 lbs of the sugar syrup. how much water and how much sugar does he need… …to make 5% syrup?

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)