Answer:
With the increase of the value of a ,the value of the expression 20+a will also increase.
Step-by-step explanation:
Answer:
Step-by-step explanation:
To find the perimeter, you would have to add all the expressions together, so you would get 2x+x+x+y+y+1+y+y
combine like terms and you will get 4x+4y+1
Answer:
411 ft ^3 (cubed)
Step-by-step explanation:
Answer:
139/15
Step-by-step explanation:
3 3/5=18/5
5 4/6=34/6
18/5+34/6
108/30+170/30
278/30
139/15