Let's simplify a. 1.5 ×10 (4)×4.5×10 (3)
divide by 2.5×10 (2)
its answer is 2.7 ×10 (5)
Can anbody show me its process

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

If a || b and e || f , what if the value of y ?

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost