An exercise machine with an original selling price of $1225 is marked down by 20%. What is the sale price of the exercise machine?plz help i dont get thins at all and nothing is helping my parents dont know how to do thins eaither

$980

Step-by-step explanation:

1225 decrease 20% =

1225 × (1 - 20%) = 1225 × (1 - 0.2) = 980

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk