Hmm...this is difficult. The first thing I can think of is the relationship between age and time.
The answer is B-about 18km
This is because you round 18.23 to 18km
then you round 13.94 to 14km
you add these rounded numbers together
you take it away from 50km
the answer would then me 18km
but it be ABOUT because that was only a rough estimate because it was rounded
The perpendicular line will have an equation of y=3/4x-3/4
To find this, we first have to solve our equation for slope intercept form.
8x + 6y = -5 ----> subtract 8x
6y = -8x + -5 ----> divide by 6
y = -4/3x - 5/6.
So we know the slope of this equation to be -4/3. Since perpendicular lines have opposite and reciprocal slopes, we know we can simply flip the fraction and make it a negative to get the new slope of 3/4. Since B is the only option with that slope, we know it to be the correct answer.
Answer:
I believe the answer is D. 
Hope i'm right
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
39 ÷ (2+1) - 2 × (4+1)
Using BODMAS Rule,
= 39 ÷ 3 - 2 × 5
= 13 - 2 × 5
= 13 - 10
= 3
