Yes, borh ratios when reduced are 5:2. 30:12 is 5:2 because both are divisible by 6. 30/6=5 and 12/6=2. 40:16 is 5:2 because both are divisible by 8, 40/8=5 and 16/8=2
You can make the equation 12x=156-x
Then from there it become 13x=156
So x=12

When

, the slope of the tangent line is

. The equation of the tangent line in point-slope form is then
Answer:
5/4
5/4 = 1 1/4
It does not belong here
Step-by-step explanation: