Answer:
6.3
Step-by-step explanation:
rounding off to nearest tenths means to one decimal place.
we have to consider the number in the hundredths place value, which is (0)
0 - is less than 5, so we do not add one to the tenths place value.
the answer therefore is 6.3
28 degrees
A triangle is always equal to 180 degrees so add the degrees together
40+2x+3x=180
40+5x=180
5x/5=140/5
x=28
