Choose the correct proportions.

15, 2, 10, 3

a) 3:2 = 10:15
b) 2:3 = 10:15
c) 2:3 = 15:10
d) 3:10 = 2:15

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.