Answer:
1.2 should be right but no promises
81 by 9 means 81 times 9 ( or 81 x 9). The answer however would be 729
Answer:
Step-by-step explanation:
After 4 years the age of father is twice as old as his son . 5 years before the father age was 1 year more than triple age of his son.
(2x + 3y)4
Distribute
4*2x = 8x
4*3y = 12y
8x + 12y
Answer: 8x + 12y
