Diane has 386 coins in her coin collection. there are a total of 112 nickels and 61 dimes in her collection the remaining coins are pennies. round each number to the nearest 10 to estimate how many pennies diane has.

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b

Whats the theoretical probability of popping a polka dot balloon? express your answer as a fraction, decimal and percent solid 15 polka dot 5 striped 17 plzz me due tomorrow