what is an algebraic expression for 'two thirds of a number (d) to the third power'?

I need to find the sum of - 1/3 + (-4/15)

The mean of a set of 7 numbers is 48. The number 104 is removed from the set. By how much is the mean reduced?

Margo purchases bulk teas from a warehouse and marks up those prices by 30% for retail sale. When teas go unsold for more than two months, Margo marks down the retail price by 30%.

457 as an improper fraction. Order these fractions from greatest to least. 37, 47, 67

The equation 5m=36.25 models a constant rate situation. What is the value of 7m

Is 9.0 a rational or irrational number?

There are twice as many Robins has blue jays and their 21 altogether how many blue jays are there

Tony measures a drum stick and gets a length of 31 centimeters kate converts tony's measurements and gets 3.1 is her answer reasonable tell how you know

Solve 7 + 2x ≥ - 5 - x

How many solutions does the equation 2+6 (x-4) = 3x-18+3x have?