Which of the following lists all the roots of?

A. - 1, 2, i, - i

B - 1, 2

C-2,-1

D - 2 - 1,-i, i,

At a charity bike rally, 2/3 of the student population of Heartsworth Middle School participated. If there are 1,200 students in Heartsworth, how many participated?

Order the numbers 0.64, 2/3, 65%, and 7/10 from least to greatest.

This Question: 2 pts 20 of 40 (19 complete) This Test: 80 pts A bank teller has some five-dollar bills and some twenty-dollar bills. The teller has 10 more of the twenties.

Mrs. Ronilo had her students make a stem-and-leaf plot of the heights of all of the students in the class. The mean was 55. Dave was absent the day they did this, and he is 57 inches tall.

9x^2 - 12x + 4 = 0 Solve for x

find and list every possible combination we could select of five games in a row for rock paper scissor

4% of how many days equals 56 days

Distance between 2 airports = 2,400 miles. Average speed of airplane = 450 mph. Travel time by bus after arrival at airport = 35 minutes. Total travel time = hours.

Write these pairs of fractions as a pair with a common denominator 3/10 2/5. 1/3 3/4

The difference of 13 and the sum of a number and 4 is equal to 45.