What is the identity element for addition of real numbers?

A. 1

B. 0

C. - 1

D. 2

Explain why 17:3 and 68:12 are equivalent ratios

What is another way to write the mumber75

48kg in the ratio 1:3:2

Suppose that a normal distribution has a mean of 20 and a standard deviation of 4. What is the z-score of 13?

Can a exterior angle be acute

Mrs. Travis wants to have a clown deliver balloons to her secretary's office. Clowns R Fun charges $ 1.25 per balloon and $ 6 delivery. Singing Balloons charges $ 1.95 per balloon and $ 2 for delivery. What is the minimum number of balloons? Mrs.

2 other decimal forms of 6.7

Describe a general method for deciding which variable to eliminate when using linear combinations. can all systems be solved by linear combinations? Explain

Janet hikes a trail at a local forest each day. The trail is 3.6 miles long, and she has hiked 5 days in the past week. How many miles has Janet hiked in the past week?

the test scores for 10 students were 61,67,81,83,87,88,89,90,98, and 100. which frequency table represents this data set?