Answer:
13 + 3x= 31
Step-by-step explanation:
Answer:
Let's say that x is sam's age and y is Amy's age
x=y-4
and five years ago:
x-5=(y-5)/2
y-4-5=(y-5)/2
2y-18=y-5
y=13
x=9
then:
sam's age is 9 and Amy's age is 13
Answer:
7
Step-by-step explanation:
twice for joey's age so joeys age is 2 double that it will be 4 so 3+4=7
Answer:
B
Step-by-step explanation:
They help support the tree in shallow soil so it does not fall over
I don't have my calculator handy just now. But just looking at that problem, why don't you try +20 and -45 and see if they do the job.
