Answer:
Anna is 41 years old.
Step-by-step explanation:
Easiest way to do this is by building a equation,
Lest say Anna's age is 
.
Then as Peter is 3 years older than Anna Peter's age should be 
.
Then the combined ages of the two people is given as 85. So we can write an equation as,
(deducting 3 from both sides of the equation)
As we originally took Anna;s age as
We can say Anna is 41 years old.
8. domain=hours
range=cost
it is a function because there is a y value for ever x
9. minutes =60, 120,180, 240 (domain)
calories= 360, 720, 1080, 1440 (range)
this is also a function
The key on a pictograph tells what each picture stands for.
Answer:
C
Step-by-step explanation:
Ferdinand's equipment is higher than Rachel's equipment.
Answer:
x = - 1
Step-by-step explanation:
I hope this will help you
