Darren practiced piano 555 days this week. He practiced \dfrac34 4
3
​
start fraction, 3, divided by, 4, end fraction of an hour each day.
How many hours did Darren practice piano this week?
hours

Ihave a 69 and an 82. the 69 is worth 40% of my grade and the 82 is worth 15%. can someone tell me my current average grade.

The length of the largest fish is 967.74 times greater than the length of the smallest fish. select a variable expression that shows the length of the largest fish, if 8 is the length of the smallest fish. a. s + 967.74 b. \[ \frac{967.74}{s} \] c. 967.74 - s d. 967. 74s

Find the solution of this system of equation -7x+y=-20 9x-3y=36