What number does x equal?

90+x+32= 180

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?