Kaylee is ordering accessories for her piano. A piano key costs $32, and a pack of strings costs $12. The shipping cost is $7 per order. The expression 32b + 12b + 7 can be used to find the cost in dollars of buying b piano keys and b packs of
strings plus the cost of shipping.
c) For A-C, choose Yes or No to indicate whether the statements are correct.
A. The simplified expression is 44b + 7.
B. The terms are 32b, 12b, and 7b.
OYes No
Yes No
O No
C. The like terms are 12b, 7b.
Yes

Convert 50 kilogram to pounds. (the conversion factor from kilogram to pound is 2.2046.) a. 52.2 lb. b. 110.2 lb. c. 22.6 lb. d. 47.8 lb.

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.

Which scenarios are most effectively explored by conducting an experiment? there is more than one correct answer. select all that apply. researchers want to study the effectiveness of a particular drug for treating migraines. they want to know which dosage of the drug yields the best results with the least side effects. to ensure fair results, the researchers want to ensure that participants and dosage administrators do not know which dosage participants receive. a teacher wants to plan a class fieldtrip and quickly determine where students prefer to go for the class fieldtrip. a car mechanic wants to know which of two engine brands makes better-performing engines. he wants to test the engines in identical situations and rate their performance in a way that can be fairly measured. a chemist studies the properties of a metal compound. she wants to know how the sample size of the metal affects its ability to conduct electricity. she wants to conduct the research in a controlled environment to minimize bias. a realty company wants to know the average income of its clients. the company wants to gather data income from current clients.