A survey asked high school students to pick their favorite subject. The results are shown in the table. Math Science English History Total Ninth Grade 9 9 7 12 37 Tenth Grade 7 17 32 6 62 Eleventh Grade 11 15 8 6 40 Twelfth Grade 9 32 16 61 Total 31 50 79 40 200 What is the probability that a randomly selected eleventh grader's favorite class is science? O A. 20 B. 40 O c. 3 10 3 D.​

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

ans789

step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)