First, ensure that both sides are single fractions:

By cross multiply, we mean:
1. multiplying the numerator of the left hand side with the denominator of the right hand side.
2.multiplying the numerator of the right hand side with the denominator of the left hand side.
That is ..
a x d = c x b
78.8 rounded to the nearest tenths is 78.8
We can not round it to the tenths because it already is rounded to the tenths.
35 divided by 385 is 11. This means Vivek will earn $143 in 11 hours.
Comment if I am wrong.
Answer:(-1,-2)
Step-by-step explanation:
The answer is b (I think not really sure)