Priam has pennies and dimes in a cup holder in his car. The total value of the coins is $4.21. The number of dimes is three less than four times the number of pennies. How many pennies and how many dimes are in the cup?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work