In digging a hole, the construction crew records the depth of the hole relative to the ground level. The starting depth is zero feet. The table shows the proportional relationship between the depth of the hole and the number of hours digging. Find the constant of proportionality. How many hours of digging does it take for the depth of the hole to reach −35.75 feet?

Explain how you can use the associative property to evaluate (7x50)x4.

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

The tree filled 3/4 of a cup in 1/2 and hour at what rate does syurup flow from the tree