Step-by-step explanation:

58 ÷ 6 = 9/2/3
i am a mathematics teacher. if anything to ask please pm me
Answer:
x = 21.3 repeating. so put the - on top of the 3 if you're writing it down
All sides of a triangle add up to 180 degrees. Since we know one angle is 93 degrees, we know that the top part is going to equal 180 degrees. We know that two of those measurements are 93 and 45, so we add those together to get 138. We subtract this from 180 to find the missing angle, which is 42 degrees. So, the left side of the triangle is equivalent to 45 degrees and the right side (x) is 42 degrees. 93 + 45 + 42 = 180. If it was asking for the measurements of the supplementary angles to the bottom angles of the triangle, then those would be (for 45) 135 and (for 42) 138, that way both angles and their supplements add up to 180 each. I hope this helps and that it’s right
.300 + .060 + .008
You would break each number's place value down and add them in a line, in decimals, you would do the exact same.