a farmer has cows, goats and pigs in the given ratio 3:4:7 if there are 49 pigs, how many cows are there​

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Witch represents the inverse of the function f(x)=1/4x-12

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars