The product of c and 2 is greater than or equal to 20
c*2 >=20
divide by 2
c>=10
Answer:
8,400
Step-by-step explanation:

Answer:
1680 ways
Step-by-step explanation:
In this question, we are tasked with finding the number of ways in which we can select 4 trips out of 8 to make today.
Let us label the the trips we are to select as A B C D, one after the other
For selection A, we have 8 different trips waiting to be selected
For selection B, we have 7 trips to select from
For C, we have 6 to select from
while for D, we have 5 to select from. Thus, the total number of ways in which we can select these trips can be calculated as = 8 × 7× 6× 5 = 1,680 ways
Answer:
15
15
Step-by-step explanation:
x + 20 = 35
- 20 -20
x = 15
5x - 14 = 16 + 3x
+ 14 +14
5x = 30 + 3x
-3x - 3x
2x = 30
x = 15