Erica paid $753.95 for dance classes. she paid $123.95 registration fee and $45 for each week. what is w, the number of weeks erica was enrolled in dance classes?

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The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.