Samuel his brother paint walls during his summer vacation he charges $10 for the first room and $5 for each additional room he paint what equation could be used to find out how many additional rooms he would have to paint to make $50 at one house

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

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

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?