You spin a spinner that is equally divided into 7 parts, and then you spin it again. 1 part is red, 2 parts are white, 3 parts are yellow and 1 part is black. What is the probability of the spinner stopping on a white section on the first spin and then a red section on the second spin?

Determine domain and range, largest open interval, and intervals which function is continuous.

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°

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?