The first option,
both have to be negative, because they were originally both part of the one fraction, which was all negative.
For questions 4 and 5, use laws of complementary and supplementary angles to find values of x. I'm not too sure about what question 10 is asking.
Hope I helped :)
Answer :
If 18+12 is 30 and only 18 of them has pets then 70 percent have pets
Answer -0.54 a line on both 5 and 4
Step-by-step explanation: