Answer:
see explanation
Step-by-step explanation:
Given

= 
= 
Rationalise the denominator by multiplying the numerator/ denominator by 
Note that
×
= a
=
× 
= 
Answer:
45
Step-by-step explanation:
Answer:
-4 1/6
Step-by-step explanation:
I think for the first one you do 8 times 9 and then 5 times 5 and add them together, I’m not sure though because I learned that a few years ago
Answer:
C. 5 3/10
Step-by-step explanation:
After adding the red strips count up the yellow blocks (13 in all)
take away 10 because that makes 1 whole
3 left over out of that 10
4 red strips + 10/10 + 3/10 = 5 3/10