How can you tell if an expression factors as (a + b)(a - b)?

Adult wasps sting caterpillars and inject their eggs into the caterpillars. the larvae feed on the caterpillars, leading to the death of the caterpillars. what kind of a relationship exists between the wasps and the caterpillars? a. the adult wasps are parasites to the caterpillars. b. the caterpillars are parasites to the wasps. c. the adult wasps are commensals, and the caterpillars are hosts. d. the caterpillars are commensals, and the adult wasps are hosts.

Aconstruction crew was made up of 88 men and the rest women. if 40% of the crew were men, how many people were in the crew?

Compare the advantages and disadvantages of using cash instead of a credit card to obtain good services