A new doctor has decided to charge $50 for simple office visits. If a test or an x-ray is needed, the doctor will charge and additional $20 for each test or x-ray. The cost of the doctors visit, f(x), is represented by f(x) = 50 +
20x, where x is the number of tests or X-rays conducted. If the doctor will never require more than 4 tests or X-
rays during a visit, determine the domain and range of that situation.

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.