Answer:
x=-2
do your box method and find what multiplies to C and adds to B
to check your answer substitute x with what x=
Answer:
210 Km
Step-by-step explanation:
Distance travelled is calculated as
distance = speed × time ( time is in hours )
= 90 × 2 
= 90 × 
= 30 × 7
= 210 Km
Answer:
12
Step-by-step explanation:
Answer:
338.28
Step-by-step explanation:
If 17 people sign up the price is 213
We want to khow the price if 27 people sign up
So:
17=> 213
27=> x( the unkhown price)
x= (27*213)/17 = 338.28