Answer:
A. 400
Step-by-step explanation:
initially have 50 pounds after 6 hours, doubles to 100. 6 (12 total) more hours 100 doubles to 200. after another 6 (18 hours) 200 doubles to 400.

to solve for j first you need to cross multiply;
j × 35 = 42 × 55
35j = 2,310
j = 2,310 ÷ 35 (did the inverse operation)
j = 66
Hope that helps :D
Answer:
4.6875 is the answer
Step-by-step explanation:
Answer:
I believe the answer is 20 and 30
Answer:x>=-2
Step-by-step explanation:x is also equal to -2 as the dot is closed.