Answer:
The expression for Annika is $ 4x and Chris is $ (x + 10).
Step-by-step explanation:
Given that Annika has 4 times more than Bob and Chris has $10 more than Bob. So the expressions will be :
Annika = 4 × x = 4x
Chris = 10 + x
Answer:
The area of triangle expressed as a monomial is 
Step-by-step explanation:
we know that
The area of a triangle is equal to

In this problem we have


substitute

Her brother is 7 years old at the moment. He will be 21 when his sister is 36.
Answer:
:(
Step-by-step explanation:
There are two possibilities: 1. the green ball is drawn from the former bottle 2.the green ball is drawn from the latter bottle
2*0.5*(2/3)