There are 270 students in Year 7 Each student studies one of French or German or Spanish.

Of these 270 students

2

study French

9

the number who study French : the number who study Spanish = 3:7

42 boys study German

Of the students who study German, what percentage are boys?

You must show your working.

What is the domain of the function f(x)=^9x

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

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.