Sum means add. Then we get twice. This means to multiply by 2. Twice a number means we have 2x. And is what we need to add to that 2x, so it is 2x + 13. Is means equals, so answer is 2x + 13 = 75.
well first the complement I 90-19=71
and supplement is 180-19=161
Answer:
10/3
Explanation:
3*3+1 = 10 over the denominator
Mark brainliest please :)
