. A seventh grade class needs 5 leaves each day to feed its 2 caterpillars. How many leaves would they need each day for 7 caterpillars?

Measures of the angle of r, 31 s (x+4) t (3x+9)

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?