Simplify.
(6+)(-7+7)
Write your answer in the form a+b.

When benny’s sister penny is 24, benny’s age will be 125% of her age. how old is lenny? a) how old will benny be then? b)if benny is 12 years old now, how old is penny now? explain your reasoning.

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years