Answer:
34
Step-by-step explanation:
First we need to do 2/3*21, which equals 14 as 3 and 21 can be simplified to 1 and 7. 7 * 2/1= 14. Then we add the 20 to 14, 20+14= 34
5. -6a-48
6. 36x+4
7. 30n+40
8. 1.8m+2
Yess
0.5x + 78.2 = 287
-78.2 -78.2
subtract 78.2 on both sides you will then get 0.5x = 208.8 you will then divide by 0.5 and the answer is x = 417.6
Answer:
282.7 cm
Step-by-step explanation: One spin is one circumference. That's π(diameter)= 282.7
