Answer:
61
Step-by-step explanation:
61 is a whole number so you don't need to round it to one.
I hope it's about 1.8 sec
Answer:
54.
Step-by-step explanation:
(self-explanatory.)
Answer:
4.) Step 2; it should be m∠o + m∠p = 180 degrees (supplementary angles)
Step-by-step explanation:
o and p are supplementary angles, and therefore add up to 180 degrees.
-3n < 81...divide both sides by -3, change the inequality sign
n > -81/3
n > - 27 <==
** in an inequality, when dividing/multiplying by a negative number, the inequality sign changes