Unit cost is $1.38lbs serving is 100 what is the total cost

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply