Answer:
-70
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Answer:
(0.4) . (0.1) = (0.04)
Step-by-step explanation:
1/2 hour = 105 miles
Divide by 1/2 on both sides :
1/4 hour = 52.5 miles
Answer:

Step-by-step explanation:
Taking the succession:

You can multiply and divide by 1-r without chaging the result:

Distributing the upper part of the fraction you have:

As can be seen all the intermediate members will be canceled by a same member with opposite sign, only
will be left so:
