13/8 is already an improper fraction
(a+b)^7= a^7+ 7a^7b+ 21 a^6b²+ 35a^5b³+ 35 a⁴b⁴+ 21 a³b^5 + 7a²b^6 + b^7
Answer:
145
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
9+8{7*6-5[4+(3-2*1)}]}
9+8{7*6-5[4+1]}
9+8{7*6-25}
9+8{42-25}
9+136
145
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Move the decimal to the right twice to make this into a percent:
1.03 —-> 103%