B. 2h+4
"Worked four hours MORE"
More symbolizes addition
"TWICE the number of hours"
Twice means multiple by two - two times a number
Answer:
6.5 x 10^6 To answer this question, you need to divide the mass of the sun by the mass of mercury. So 2.13525 x 10^30 / 3.285 x 10^23 = ? To do the division, divide the mantissas in the normal fashion 2.13525 / 3.285 = 0.65 And subtract the exponents. 30 - 23 = 7 So you get 0.65 x 10^7 Unless the mantissa is zero, the mantissa must be greater than or equal to 0 and less than 10. So multiply the mantissa by 10 and then subtract 1 from the exponent, giving 6.5 x 10^6 So the sun is 6.5 x 10^6 times as massive as mercury.
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Answer:
5.27
Step-by-step explanation:
3 divided by 11 is 0.272727272727272727 or 0.27
add 5 and 0.27
3x-6y. you need to take away the parentheses and combine like terms
