Percents Total
X
x
100%
X
Mia bought a poster that was discounted $5 from an
original price of $20. Which equation models how Mia
can find the percent of discount?
O $5 = x ?- $20
O $5($20) = x
O $5 = $20(x)
O $5(x) = $20
$5
$5
$5
$5
$20

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?