Casey buys 8.8 yards of blue fabric and 9.8 yards of red fabric. If the blue and red fabric cost the same amount per yard, and Casey pays $93 for all of the fabric, what is the cost per yard?

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Step-by-step explanation:

(x, y)→(x − 8, y − 7)

step-by-step explanation:

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0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)