Peter went to a department store and paid $59.59 per fire alarm for seven fire alarms and a flat rate fee for installation for a total of $452.98. Ashley went to another store and paid $58.29 per fire alarm for seven fire alarms plus a per fire alarm installation fee for a total of $453.39. What is the difference in the amounts they paid in installation charges? a.$10.51
b.$9.61
c.$10.61
d.$9.51

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

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%

explanation:

remove parenthesis:

=

apply rule

=

multiply fractions:

=

=

divide:

=

mordancy.

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation: