2x - 5 = 15 two step equation

If my expression is - 12y + 90=-8 what is y?

Find the value of tα/2 when n = 18 for the 99% confidence interval for the mean.

Which property of addition is shown below? a + bi + c + di = a + c + bi + di identity property associative property commutative property inverse property Well, since the commutative property states that no matter how the numbers are arranged, the

The hypotenuses of two similar right triangles are segments of the same line. Which of these statements is true about the two hypotenuses? A. Their lengths must be the same, but not their slopes. B.

Y=2x+7 what is the slope (m)

How do I make an algebraic formula for a number that's increasing by 74%? Starting number: 93.13, I need a formula to go up by 74% 100 times.

The next number in the sequence - 5,-2,4,13 is 25. Is this conjecture ruse or false? A. False B. Not enough info provided. C. True

Consider the system of linear equations. 5 x + 10 y = 15. 10 x + 3 y = 13 To use the linear combination method and addition to eliminate the x-terms, by which number should the first equation be multiplied? - 2 Negative one-half One-half 2

Assume that a student's alarm clock has a 11.2 % daily failure rate. What is the probability that the student's alarm clock will not work on the morning of an important final exam?

Whats the area of a 7in by 5in triangle