Answer:
-1/4
Step-by-step explanation:
-1/2 + -1/4 = -3/4
This means each item increments by -1/4
We can do -1/2 + 1/4 to get -1/4
im not sure how to explain but ill try, -3/4 + 1/4 = -1/2 or -2/4 -2/4 + 1/4 = -1/4
a=28 b=87
a-10=18 a=10+18 a=28 b+16=103 b=103-16 b=87
20
740
Answer: 320,340,360,380,400,420,440