Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape.
Answer:
1/5... 1 on top 5 on bottom
Step-by-step explanation:
sub in the values:
will now be 
now add:

simplify:
1/5
Answer:
you first start by making your equation: 45 +.25x = 70 +.15x. then subtract .15x from both sides. it should look like 45 +.10x = 70. subtract 45 from both sides then you get .10x = 25. divide 10 to both sides and you get 250. so the two companies will be the same at 250 texts.
Step-by-step explanation:
Just answers since long and many simplifiction
it's like doing those multiplication memory things that had like 100 questions but now with algebra fractions
5. fourth or

6. third or

7.the answe ris x+3 since it can be factored out of the 5x+15 tingie (second )
8. fourth or

9. fourth or

times
10. third or

11. second or
12. third or 11(x+7)=60
Answer: 13
Step-by-step explanation: It goes up by 5 so 8, 13, 18, 23, and etc
Please tell me if I'm wrong