Dose anyone know how to do these problems

1. 14

2. 20

3. 12

4. -400

5. 6

6. 21

7. 11

8. 16

9. 40

10. 49

11. 12

12. IDK

Step-by-step explanation:

1. 16-2=14

2. 16+4=20

3. 6 X 2 = 12

4. -400/-10 (negative divided by a negative equals a positive) = 40

5. 6 X 6 = 36

6. 16+5=21

7. 23-12=11

8. 4 X 16 = 64

9. 36-16=20, 20 X 2 = 40

10. 400-8=392, 392/8= 49

11. 912-612=300, 300/25 = 12

12. Sorry too confusing.

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation:

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value