Which sum will be positive?

4 + (-5)

-4 + 3

8 + (-9)

-3 + 4

What is the degree of the following polynomial? 9 - x ^ 2 + 2x ^ 5 - 7x

Robert decided to use blocking to deal with an extraneous factor in his experiment. What will blocking do to the subjects in his experiment? A. Divide them into groups based on whether he likes them B.

What is 7 over 100 simplified

True or false: randomization allows each member of the population to have an equal probability of being selected for the sample population

What is 8 10/11 in simplest form

Write a rule that represents the function. The ordered pairs are (0,0) (1,0.5) (2,2) (3,4.5) (4,8)

What is 9:630 and can you explain and show your work?

What is the interest earned on $400 invested at the rate of 6% for one year?

How many solutions are to 2x - 5y=17 6x-15y=51

What does it mean if a quotient is undefined? (1.5/2.4) ?