Acollection of coins consists of dimes and nickels .the number of dimes is two more than the twice the number of nickels. the value of the collection is $2.70. how many dimes are in the collection ?

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

What is the solution of sqrt x+2-15=-3

The length of a rectangular plot of land is given by the expression 6x^3y^4. the width of the plot is given by the expression 5x^5y^4z. find an expression to represent the area of the rectangular plot.