Answer:
C
Step-by-step explanation:
1 1/4 = 1.25
1 4/5 = 1.8
1.8+1.25=3.05=3 1/20
To find the same value as 3 x 1/10 you first have to solve 3 x 1/10
so how to do this is you have to make 3 into a fraction
so to make 3 into a fraction you can put 3 as the numerator and 1 as the denominator
so you multiply

so 3/10 has the same value as 3x1/10
HOPE THIS HELPS!!!
Answer: 21
Step-by-step explanation:25%=1/4
1/4*84 =84/4
84/4=21
676 - 178 is 498.
498/2 is 249.
There were 249 bike riders and (249 + 178) hikers.