Answer:
Step-by-step explanation:
3.5×4.9
=35/10×49/10
=1715/100
Or 17.15 answer
3/5 times 4/9. multiply straight across. 3 times 4 is 12. 5 times 9 is 45. your answer is 12/45. but this answer can be simplified if we take out a 3 for each one. so you have 4/15
B. Complementary Angles
They both make up 90 degree angle.
7. Option D
9. Option B
10. Option C
Triangle and square!
Let me know if im wrong and I will fix it.
the answer is c
