The following dot plot represents student scores on both the unit 1 and unit 2 math tests. scores are in whole number increments. part 1: looking at the data plots, which test do you think the students scored better on? do you think one of the tests has more variation than the other or is the variation about the same for both tests? use complete sentences in your answer and explain your reasoning. part 2: calculate the mean (rounded to the nearest whole number) and mean absolute deviation for the unit 1 test. part 3: do your results from part b prove or disprove your hypotheses from part a? use complete sentences in your answer and explain your reasoning.

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?