exponent 2. A Variable is a symbol for a number we don't know yet. It is usually a letter like x or y. An exponent (such as the 2 in x2) says how many times to use the variable in a multiplication. ... There will often be constants (numbers like 3, 2.9, ½ etc) mixed in as well. ... Now remove any matching "y"s that are both top ...
The median is 20.7 if you order to least to greatest and find the middle number
Answer:
r=1.43147648, −4.19147648
Step-by-step explanation:
