Lester was solving an equation but he made a mistake. What is the mistake and what is the correct answer? x + 17 = 22
–22 –22
x = 0

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!