Just divide 100% by 80% and multiply that answer by 5. I'm pretty sure that's how you do it.
The first number in this item can be also expressed as 2.3 x 10³. Now, dividing the numbers 2.3 and 0.4 will give us an answer of 5.75. There exists a rule which states that when two similar numbers are divided only having different exponents, their exponents should be subtracted. The final answer to this item is therefore,
5.75 x 10¹¹
I belive it c but i mit be wrong so dont mark it
90x + 4
Factor out GCF
2 ( 45x + 2)
Answer:
the answer is 9:25 ............
