select qll the ways to make an electromagnet stronger: A) increase the number of coils, B) add a battery, C) heat it up, D) use a sronger battery, E) add a second nail​

the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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a coal burning power plant

answer: (431,2)

step-by-step explanation: