Brittany started babysitting. She started off with $15 in her account, and her babysitting rate is $10 an hour. The first week she babysat, she worked for 4 hours. The second week she baby sat, she worked 6 hours. The third week she babysat for 2 hours. If in the fourth week she babysits for 8 hours, how much total money will she have?

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step-by-step explanation:

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step-by-step explanation:

i believe the answer is letter c) 8

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92