The number of ants in a colony that is decaying can be modeled by f(x)=800(.87)^x where x is time in days and 800 represents the original number of ants. suppose f(20)=49 which of the following is true

If the measure of xyz is 81 what is the measure of yz

What is the reflection image of (5,-3) across the line y = -x?

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?