A key word means something that has to do with math. The key word to a math problem is that it helps you under stand a math problem like cubes
2x+3y=24 is the equation and the slope intercept form y=-2/3x+8
(-1,.5)
It simple all you have to do is go to Desmos and make your equation line
Answer:
5.61; 8.5 %
Step-by-step explanation:
Tax = $1.87 per $22 meal
For a $66 meal,
Tax = 66 × 1.87/22
Tax = 3 × 1.87
Tax = $5.61
=====
Tax rate = 1.87/22 × 100
Tax rate = 0.085 × 100
Tax rate = 8.5 %
Sum of n terms = a1 * r^n - 1
---------------
r - 1
a1 = 1/3 and common ratio r = (2/3) / (1/3) = 2
so sum of 5 terms = (1/3) * (2*5 - 1) / 2-1 = 31/3
This is easily checked by just adding up the 5 terms