you answer is 10 hope this help[s :D
Rate for Sally is 1 room per 8hrs
rate for Steve is 1 room per 7hrs
combined rate:
1/8 + 1/7 = 1/T
7/56 + 8/56 = 1/T
15/56 = 1/T
56/15 = T
3 11/15 = 3 hrs 44 min
The axis of symmetry is -b/2a so -(-8)/2(2) = 8/4 which is 2. The axis of symmetry is 2.
Answer:
commutative property of multiplication
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1, 3, and 4
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yes
no
