Find the missing number

20 - 4= 10+

Please explain, I forgot how to solve these

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

How are sas and sss used to show that two triangles are congruent?