The mean of 100 numerical observations is 51.82. What is the value of the sum of all 100 numbers? A. 5.182 B. 0.5182 C. 51.82 D. 5182 E. 518.2

A parallelogram has an interior angle measuring 81º. Which MUST also be the measure of an interior angle of the parallelogram? A) 9°. C) 49° B) 19° D) 99°

How do you write the number 0.21212121 ... As a fraction

What should Andrea conclude about this system of equations?

If two lines are perpendicular what does that mean

Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for the water level, w, after d days. In how many days will the water level be 26 feet?

Meg has a piece of poster board that is two and two-fifths feet wide. she needs to fold it into three equal sections. how wide will each section be? two-thirds feet four-fifths feet six and two-fifths feet seven and one-fifth feet

If the hot dog eating champion's goal is to eat 1 hot dog every 13 seconds, how many whole hot dogs does he expect to eat in 12 minutes?

What is (8-2x2) to the power of two equal using pemdas?

What is the degree of the polynomial 5x + 4x^2 + 3x^3 - 5x? a. 1 b. 2 c. 3 d. 4

If there are 18644 students in the college and 1/4 of them take speech, how many of the students take speech?