0.17/30 = x/450 <em>Use proportion</em>
76.50 = 30x <em>Cross multiply</em>
2.55 = x <em>Divide 30 both sides</em>
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7.5 minutes call would cost 2.55
4(2x - 1) = 9(x - 4)
8x - 4 = 9x - 36
x = 32
i am a mathematics teacher. if anything to ask please pm me
That should be 125i. If you have a graphing calculator you should be able to just enter it into the calculator to solve lol
Answer:
A=20 B=23 C=17,19,23
Step-by-step explanation:
A=20
B=23
C=17,19,23