9.4 Qiz Setting up and solving simultaneous equations B The total height of 4 building blocks and a flagpole on top is 23 cm.
The total height of 9 building blocks and a flagpole on top is 43 cm.
Find the height of a building block and the height of a flagpole.
Height of a building block =
cm
Height of a flagpole =
cm

building block = 4cm

flag pole = 7 cm

Step-by-step explanation:

9b + f = 43

4b + f = 23

5b = 20

b = 4

16 + f = 23

23 - 16 = 7

f= 7

36 + 7 = 43

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%

the answer would be 0.54