Anyone know? will mark brainliest if correct!

C.  For each bolt the number of cracks decreased by an average of 1/2.

Step-by-step explanation:

Consider the points (2, 8) and (8, 5) on the line.

The number of cracks decreased from 8 to 5 while the number of bolts increased from  2 to 8. Thats a ratio of -3 : 6, which supports choice C.

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

47.28 or 47.2857143

step-by-step explanation:

you just divide 331 by 7 and you get that answer. ( i think so tho)