Answer:
-33/28 or -1 5/28
Step-by-step explanation:
You would first find a common denominator. It would be 28. Your equation should look like this: -12/28 + -21/28. That equals -33/28 which simplifies to -1 5/28. I hope this is right and helps!
-33/28
-12/28 + -21/28
= -33/28
you can't simplify it so its -33/28
26
the answer is 26
Since an equilateral triangle has all three side equal then one of its side is 38mm
b
Answer: 96 in2
Step-by-step explanation: This is because u have to mutiple the two bases and the lateral sides to get your area
