Answer:
3x-526
Step-by-step explanation:
the 3x would go in the beginning. then you subtract (-4-522)= -526.
She should use a computer to select 30 students at random then ask which ones play chess. The other options could produce more skewed results.
Answer:

Step-by-step explanation:
Step 1
List the length of the wingspan of the five butterflies

Step 2:
The two butterflies with the shortest wingspan has a wing length of
inches each.
Step 3:
Total length of the wingspan of the two butterflies with the shortest wingspan
= 
Final answer:
= 
25.3 is what i got for the first image.