multiply -6x-7y=-10 by 2 and add to other equaiation
divide both sides by -4
add 24 o both sides
divide both sides by -7
its 60-10+x why, because she bought the dress with $60 and she received $10 dollars back. We don't know the variable.
start value: percentage of your start value: end value:
126 - %10 113.4
this means that in September,, an average of 113.4 bicycles were rented per day,, but we dont stop there. in order to get an average number that matches the option choices,, we must either round up or down. if the first number behind the decimal is less than 5,, round down but if it is 5 or larger,, round down. when looking at the first number behind the decimal you will see that it is smaller than 5,, so we round down to 113. this means that the correct answer to your question will be option A,, 113.
let me know if you have any further questions