I really do not know but it is fornite so, I do not know :)
Multiply all terms by 2 to get rid of fractions
2x+10=28-x
Add x to both sides
3x+10=28
Subtract 10 from both sides
3x=18
Divide both sides by 3
x=6
Final answer: x=6
To find the area of both you would need to multiply the b-base times the height and then divide ur answer by 2 so in #1 you would multiply 4 times 10 and then that would be 40 and divide that by two making your answer 20. and for the trapazoid the formula is a+b divided by 2 and then multiply that all by ur height and your answer would be 91.
Answer:
12
Step-by-step explanation: