What equation shows the value of -2/5 -(-9/15)?

Nine more than four times a number is the same as one less than twice the number. find the number?

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

Which of these triangle pairs can be mapped to each other using a single translation? cof hn