A piggy bank is full of nickels, dimes and quarters worth $3.30. If there are three times as many nickels as quarters, and half as many dimes as nickels,
how many of each kind are there

idk sry

step-by-step explanation:

a = 11 : 4

b = 38

c = 1 for every 6

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50