sweetduck834
sweetduck834
13-04-2018
Mathematics
contestada
please someone help me please :(
Respuesta :
MathGenius04
MathGenius04
13-04-2018
C = 19.99 + 0.15x
1️⃣ C = 0.15(78) + 19.99
2️⃣ C = 11.7 + 19.99
3️⃣ C = 31.69
4️⃣ The total cost is $31.69
5️⃣ The cost to send 78 text messages is $11.70
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