Answer:
2 x + 6 . 8 = 8 x + I . 4
8x _2x = 6.8 - 1.4
6x = 5.4
X= 0.9
2x+ 6-8= 2×0.9 + 6.8 =8.6
If you convert 840,000 to scientific notation; you would take 840,000 and divide it by 10^5 (ten to the fifth power) which is 100,000 and that would leave you with 8.4 divided by 10^5. Remember scientific notation must be expressed as a number 1 through 9 but less than 10.
The 'Y' Coordinate is written second in an order of coordinates which is /X , Y\ Prob such as /12, 5\
5 is a constant - you pay $5 before you go on any of the waterslides.
let the number of waterslides Steven went on = x
5 +2x =17 ($5 plus $2 per waterslide ride = 17)
Answer a is correct.
By the way, Steven went on 6 waterslide rides.