What is the answer of 3 1/5 - (-1 9/10)?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.

What is the slope of the line? a. -5/2 b.2/5 c. 5/2 d.7/2