22
one half
10.8 or 10 and 4/5
It's 1/4
Two multiplied by two and one-half = 2 * 2.5 = 5
2
12.5 multiplied by 5 is 62.5
25 multiplied by 5 3/4 is 143 3/4
2 and one quarter
-4
It is ten.
4 multiplied by one fifth is four fifths.
The two numbers that can be multiplied to get 20 and added to get -9 are -4 and -5. When multiplied, (-4 \times -5 = 20), and when added, (-4 + -5 = -9).