Answer:
Step-by-step explanation:
<u>hope this helps!</u>
23 bubbles per minute
Rate is per minute
46 bubbles/2 minutes
23 per minute
He score lower on the 41 out of 55
32/40 = .80 or 80%
41/55 = 0.75 or 75%
15
4x² + 8x − 7 = 0
4x² + 8x = 7
x² + 2x = 7/4
x² + 2x + 1 = 11/4
(x + 1)² = 11/4
x + 1 = ±√(11/4)
x = -1 ± √(11/4)