1. Find the length of a

19.20 would be length a

Step-by-step explanation:

we would use the pythagorean theorem a^2+b^2=c^2

12^2+15^2=c^2

144+225=c^2

369=c^2

√369=c

19.20=c

It would be greatly appreciated if you gave me the brainlest

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.

what graph

step-by-step explanation: