If 2d = 5c, then all of the following are true except
a. 2/5=c/d
b. 5/2=d/c
c. 2/c=5/d
d. 2/d=5/c

Option d is correct

Step-by-step explanation:

Given that:

Option d.

By cross multiply we have;

 which is true.

Option b.

By cross multiply we have;

 which is true.

Option c.

By cross multiply we have;

 which is true.

Option d.

By cross multiply we have;

2c = 5d

which is not true.

Therefore, all of the following are true except

47 - 90 = 43

43 - 180 = x

x = 137

$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