$1.$ Write a program to calculate and output order subtotal amount, total sales tax amount, and order total amount. Ask the user to provide following information:

a$.$ Price and quantities for $3$ items

b$.$ Sales tax in $\%($e$.$g$.8\mathrm{.}8\%$ should be entered as $0\mathrm{.}088)$

$2.$ Here is a variation on Elizabeth Warren$$s recent proposal at last week$$s NYC rally to tax rich individuals: If the total income is

a$.$ Less than $$100,000,$ one pays just $1\%$ tax on the total income,

b$.$ More than $$100,000,$ then one pays $5\%$ tax on the total income, and

c$.$ More than $$500,000$ then one pays $5\%$ tax on the first $$500,000$ and $2$ cents for every dollar above $$500,000,$