Mr. barclay sold goods for $21 and lost a percent equal to the number of dollars he paid for the goods. how much did the goods cost him? a $70 b $55 c $40 d $95 show step by step.

option: A($70)

Step-by-step explanation:

We are given Selling Price(S.P.) of the goods=$21

Let the cost price(C.P.)  of the goods be denoted by 'x'.

Also we are given that the loss percentage is equal to the C.P.

i.e.

This means that x=70 or x=30

Hence from the options given we could say that the cost price of goods is $70.

Hence option A is correct.

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

where r the answers

step-by-step explanation: