Answer:
7 hours
Step-by-step explanation:
47+23=70
1hour = 70 toys
? = 490 toys
Then you cross multiply:
1hour*490 toys= 490/70 = 7 hours
____________
70 toys
I think that the answer is A.
10 = r²h
(2r)²(2h) = 16r²h
volume of B is 1.6 times the volume of A
24/6= 4
4 words per minute
the answer is d
the answer is d because