A​ person's blood type is denoted with the letters​ A, B, and​ O, and the symbols​ + and - . The blood type​ A+ is read as A positive. The blood type B - is read as B negative. Use the data to write a ratio for the comparison in 3 different ways.

(a) O+ to A+

(b) AB- : AB+

(c): B+ to total

Step-by-step explanation:

Given

See attachment

Required

Solving (a): O+ to A+

We have:

So, the ratio is:

---- first comparison

Divide by 5

---- Second comparison

Divide by 45

---- Third comparison

Solving (b): AB- to AB+

We have:

So, the ratio is:

---- first comparison

Divide by 2

---- Second comparison

Multiply by 2

---- Third comparison

Solving (c): B+ to total

We have:

So, the ratio is:

---- first comparison

Divide by 5

---- Second comparison

Multiply by 2

---- Third comparison

- (2, -7)

- lines r and s and lines t and u must be parallel