Meryl worked on her science project for 1.2 hours every day. How many hours did she work on her project in 8.5 days? A.11.0 hours
B. 8.7 hours
C.9.7 hours
D.10.2 hours

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step

What is the area of the trapezoid shown ?