First number is x.
Second number is (x+1).
Their sum is (x+x+1)=(2x+1)
2x+1=25
2x=25-1
2x=24
x=12
x+1=13
Numbers are 12 and 13.
Answer: A and B I think
Step-by-step explanation:
Answer:
mass=180kg and the volume=6m³.
then the formula to find density is= mass/volume
using this formula,180kg/6m³=30kg/m³
Answer: 
Step-by-step explanation:
Given
Principal amount is 
Rate of interest 
Time period 
We know, Simple interest is

Putting values

Sara gets
after 5 years and 6 months
Answer:
80.
Step-by-step explanation:
His total score for 5 tests = 5 * 77.4 = 387 .
Sp his score for fifth test
= 387 - (88 + 77 + 70 + 72)
= 387 - 307
= 80.