What is the answer/solution of

21=-7n

Penny is asked to find the probability of rolling a 5 on a die and drawing a jack from a deck of cards. This is a simple event

What is the value of x? 6x-2 (x+4) = 12 Enter your answer in the box.

During the first day of a heat wave and emergency room had three times as many patients as the day before they were 48 patients seen total over there today. How many patients visited the ER on each day

You use 8 cups of flour to make much flou24 muffins. at that rate how much flour will you need to make 30 muffins

The slope of a line is - 3. find the slope of a line that is perpendicular to this line.

Write an inequality that represents the description and then solve. Dave has $15 to spend on an $8 book and two birthday cards (C) for his friends. How much can he spend on each card if he buys the same card for each friend?

How many terms are in the arithmetic sequence - 27, - 16, - 5, ..., 292? Hint: a_n=a_1+d (n-1), where a_1 is the first term and d is the common difference

Rachel invested $15,000 in a nine-year CD giving 8.5% interest, but needed to withdraw $4,000 after two years.

What temperature is equivalent to 373 k? a. 0 °c b. 50 °c c. 100 °c d. 373 °c

A test has a mean of 65 with standard deviation of 5. What percent of the students would you expect to receive a grade of 55 or more? a. 2.5% b. 95% c. 13.5% d. 97.5% e. none of the above