Question: State whether each of the following is true or false. If false, explain why. a) Addition is executed first in the following expression: a *

State whether each of the following is true or false. If false, explain why.

a) Addition is executed first in the following expression: a * b / (c + d) * 5.

b) The following are all valid variable names: AccountValue, $value, value_in_$, account_no_1234, US$, her_sales_in_$, his_$checking_account, X!, _$_, a@b, and _name.

c) In 2 + 3 + 5 / 4, addition has the highest precedence.

d) The following are all invalid variable names: name@email.com, 87, x%, 99er, and 2_.

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