If productCost and producePrice are numeric variable, and productName is a string variable, which of the following statements are valid assignments? If a statements is not valid, explain why not?
A. productCost = 100
B. productPrice = productCost
C. productPrice = productName
D. productPrice = "24.95"
E. 15.67 = productCost
F. productCost = $1,345.52
G. productCost = productPrice - 10
H. productName = "mouse pad"
I. productCost + 20 = productPrice
J. productName = 3-inch nails
K. productName = 43
L. productName = "44"
M. "99" = productName
N. productName = brush
O. battery = productName
P. productPrice = productPrice
Q. productName = productCost