Answer: 6y - 4
(-y + 5) + (7y - 9)
= (7y - y) + (5 - 9)
= 6y - 4
Step-by-step explanation:
Answer:
the graph's slope-intercept is 3 or 3/1. you do this by finding the rise over run (how many squares does it go up, and how many does it go over).
The Y-intercept is -2. You can always find this by using the formula y= mx + b. Whatever number is in the place of "b" is the y-intercept.
I'm going to take a guess and say you're in Algebra 1. Either that or Pre-Algebra. This stuff took me a little while to full grasp, so don't worry! YOu'll understand it soon enough!
Kito makes on online purchase of a guitar case for $39.99, a tuner for $24.99 and picks for $26.99. Taxes are 6% of the total purchase price. Shipping is $8.20-add up the total: 39.99+ 24.99+ 26.99= 91.97 -calculate the sales tax: 91.97 x 0.06= 5.5182 -add in the sales tax: 5.5182+ 91.97= 97.4882 -add in the shipping cost: 97.4882+ 8.20= 105.6882
And you get $105.69 which is option A. Kito has been billed correctly