It is 20 because the 5 is in the ones place so the 2 has to be in the 10 place which makes it 20
You have to move the decimal point from the end to between the 6 and 5 then count how many spaces you moved it because this will become the power on the 10.
6.5 x 10^7
Write that as 7x. Writing it as x7 could lead to confusion. 7*x would be OK.
Answer:
11x
Step-by-step explanation:
u just add them regularly
X=20. Because that line is 180 and u subtract 40 and u do 140/7= 20