The price of an item has been reduced by 80% the original price was $20. What is the price of the item now ?

Step-by-step explanation:

80% = 80/100 which also = 4/5

so the price was reduced by 4/5

20 minus 4/5 is = to  20 minus 16/20

which is 20/20 minus 16/20 = to 4/20

simplified is 4 dollars

10x

step-by-step explanation:

the greatest common factor 30 and 20 is 10

5 is a common factor of 30 and 20 but 10 is also a factor and 10 is greater than 5 so 5 will definitely not be apart of our answer

now the most amount of x's you factor our is just 1 factor of 1

so 10x the gcf of the terms in the polynomial

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°