4*50 + 3*200 = 700
i hope this will help you
Answer:
1/2
Step-by-step explanation:
hope this helps :o
Answer:
Step-by-step explanation:
145 = 2x + 15
2x = 130
x = 65 (ANS)
area is just length times width ! so u do 90 x 100 = 90,000cm^2 :)
Answer with positive exponent =
or 
Answer with negative exponent = 
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Explanation:
The rule we use is

If we multiply two exponential expressions with the same base, then we add the exponents.
The base for each is 5. The exponents 4 and -7 add to -3.
This means

To convert to a positive exponent, we apply the reciprocal to the base. We go from 5, aka 5/1, to 1/5.
So, 