Answer:
√21/5
Step-by-step explanation:
Took the quiz:D (that’s a fraction btw)
<u>First let's calculate the exponents.</u>

<u>Now we should multiply and divide.</u>
<u />
<u />
<u>Now we should add and subtract.</u>
<u />
<u />
<u>Convert the improper fractions into mixed numbers.</u>
<u />
<u />
<u />
<u>Answer : </u>
<u />
<u />
<u />
Answer:
The amount that Obi initially had was £20
Step-by-step explanation:
Let
x ----> amount that Obi initially has
y ----> amount that Rudy has
we know that

----> equation A


----> equation B
Solve the system by substitution
substitute equation A in equation B

solve for y

Find the value of x

therefore
The amount that Obi initially had was £20
91 ! just use a calculator or do it by hand