hello
hope this helps
Answer:
6x-2y=4
Step-by-step explanation:
Pretty sure you'd use the decay formula y = b(1-r) so y = 20,000(1-0.25) which equals $6328
The t and the 4 are supposed to be superscripts
12x+4x-7y+45b+78a-44b+1a+1z+0d+1.1a+1.1a
integers is your answer