The first option because turn them all into degrees and it says:
54, 60, 90, 120, 255
First off, let's convert the percentages to decimal format, so our 77% turns to 77/100 or 0.77, and our 55% turns to 55/100 or 0.55 and so on
now, the sum of both salines, must add up to the 77% mixture, let's say is "y"
so, 11 + 4 = y, and whatever the concentration level is, must also sum up to the mixture's concentration of 77%
anyway thus

solve for "x"
Im not understanding what you are asking
Answer:
Step-by-step explanation:
That answer is pyrimad cuz it has 4 sides and congruent parell 2 sides
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