1.
I 180 = 2^x×3^2×5 then the value of x is
a)1
b)2
c)3
d)4

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?