Answer:
The ratio is 15:5 or 3:1. If Marianne is 3 years old, her brother is 1. And it is proportional...
Step-by-step explanation:
Answer: 64 and 81
Step-by-step explanation: I used my brain. :)
(1+6i)—(7+3i)
1+6i—7–3i
1. 1–7 = —6
2. 6i—3i=3i
So
-6+3i
Answer:
Hence the correct option is the last one . The triangle is an obtuse angled triangle.
Step-by-step explanation:
i) the sum of any two sides added together is greater than the third side hence this is a triangle.
ii) it is<em><u> not</u></em> a right angled triangle as
and 
iii) the triangle is not acute from ii) above
iv) the triangle is an obtuse triangle from ii) above.
The original price would be $60 cuz 50% is half which means 30 is half of 60