Identify the first step that contains an error. Solve:
—38 = 4x – 2(x + 5)
Step 1: -38 = 4x – 2x – 10
Step 2: -38 = 2a – 10
Step 3: –48 = 2.0
Step 4: -24 = 2
What step contains the error

What numbers are included in the set of integers? what numbers are not included?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?