Answer:
Step-by-step explanation:
281-28.5=252.5
252.5 divided by 0.4=631.25
X=631.25
Answer:

Step-by-step explanation:
According to the Product Rule for Exponents, 
a = 7
m = 9
n = 4
So,

So, the answer is
.
Hope this helps!!!
Please mark me as brainliest!!!
Answer:
it will take him 3 weeks to reach is goal.
Step-by-step explanation:
if michael needs $200 and he already has 50 then 200-50 is 150. then you divide 150 divided by 15 to get 3
hopethis helped.
65 trillion can be written as
65,000,000,000,000
or as
6.5 x 10¹³ .
The answer is 1/2=5/10 2/5=4/10 but what about the other tenth