The sales tax rate in a city is 9%. Find the sales tax charged on a purchase of $400. Then find the total cost. The sales tax is $_.

The total cost is $_. (Total cost = $400 + tax in $)

Can i get some on 18,20,& 22? or one of them

1234567891011 match the reasons with the statements in the proof. given: j | | k m 1 = m 3 prove: l | | m 1. j||k, m∠3 = m∠1 if lines are ||, then corresponding angles are =. 2. m∠1 = m∠2 if alternate interior angles are =, then lines are ||. 3. m∠2 = m∠3 substitution 4. l||m given

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots