Hi there!

Find the area of the parallelogram using the formula:
A = b × h
Thus:
A = 7 × 5 = 35 units²
You need to write it out such as number 8 would be 10x10x10x10 so for every number on top you multiply the number by itself
(88 + 92 + 96 + x) / 4 = 90
(276 + x) / 4 = 90
276 + x = 90 * 4
276 + x = 360
x = 360 - 276
x = 84 <=== he would need an 84
4, 2, 1, 3
we cannot use 2 before having another triangle, so 4 must be before 2
we can use 1, but it will be just a restatement of the given information is not done before 4 and 2
3 is the final goal, which is always the last step
Answer:
1) 49/10 and 490/100
2) 49/1000
Step-by-step explanation: