2(4x - 5) = 49
8x - 10 = 49
8x - 10 + 10 = 49 + 10
8x = 59
8x/8 = 59/8
x = 7.375
30/8=3.75
So, you need 4 trays, since you can't have 75% of a tray.
Hope this helps
Answer:

Step-by-step explanation:
difference of a number and 9 means to subtract

twice that means multiply by 2

at least is greater than or equal to

Answer:
Yes they are equivalent.
Step-by-step explanation:
They each represent one half.
Answer:
yes becvaib it is
Step-by-step explanation:
yes 0