Which one of the following is legal variable names, type yes or no in front of each variable name? if not, state the reason.

a) computebudget
b) five+six
c) illegalname
d) legal name
e) 4u

Explanation:

A) computebudget - YES  is legal variable name.

B) five+six- NO.

A legal variable name cannot contain mathematical operator or in fact any operator + is used so not a legal variable

C)illegalname - YES

is legal variable name.

D) Legal Name: NO

A legal variable does not contain any space between it's name although it can have underscore sign

E) 4U - NO

A legal variable name cannot start with a digit.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.