Astudent claims that the expression “9 times the sum of a number and 13” is translated to the algebraic expression 9n + 13. is the student correct? if not, what is the correct expression?

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent