The exchange rate is $5.30 = 11.1 pesos . How many dollars did he receive if he exchange 42.7 pesos

Really need on these. i have no idea what to do

Translate the following situation into an inequality statement . lily has $25 to spend on a charm bracelet for her sisters birthday gift the cost of the bracelet is $12 plus $1.50 per charm

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer