The perimeter of semiceculer protercter is 14.28 find it's redius

42 cm

Step-by-step explanation:

Let the radius of the ptractor be r cm

Then,

Perimeter = 108 cm

=1/2 (2pie r) +2r =108 cm

:. The perimeter of the semi circle = 1/2 (2 pie r)

= pie r +2r = 108 = 22/7 × r + 2r = 108

= 36r = 108 × r =108 ×7

= r=3×7 = 21

Diameter of the ptractor = (2×21=24cm)

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

19

step-by-step explanation: