1. Three scoops of whey powder contain 45 grams of protein. How many scoops of whey powder contain 135 grams of protein? 2. A toy robot moves 10 feet in 12 seconds at a constant speed. How many feet does the robot move in one second.

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step-by-step explanation:

answer:   expression= p+p*d%

price reduction + sale price = $625

sale price: $p+$p*d%

where d% is the percentage of discount

step-by-step explanation:

original price = p

price went down by $150 price reduction $p*d%

sale price= $ 475

therefore the price before sale is: $625

and the expression that shows the price before sale is: p+p*d%

he answer is x=1x3 because x=1 to x=3