Hello there! Given the expression, we can solve through a series of steps:
1. Simplify
-5 + 7 • 1
2. Multiply (according to order of operations)
7 • 1 = 7
3. Add
-5 + 7 = 2
Your final answer is 2. Hope this helps!
The perimeter is 10.3. I think that's already in significant digits, but I'm not sure. We just got finished learning that in chemistry and it confused me to death!
Slope y-intercept form is: y=mx+b
All you have to do is rearrange the equation:
2x-3y=6
2x=6+3y
2x-6=3y
now divide both sides by 3
(2x/3)-(6/3)=(3y/3)
and it becomes

x
Bonus: you can plug in any two values for x and y and you can see both equation gives the same answer!
Where’s the photo? But I need to answer with a photo 3.8 ft and 1.1 ft equals 4.9 ft