Adam had 91dollars. if he spent 21 dollars on new books, what is the ratio of the money he still has to money he's spent.

3/13

Step-by-step explanation:

ratio is another way to say fraction, so we have 21/91.  This can be reduced if we divide by 7: 21/7 = 3, 91/7 = 13.  Now we have 3/13.  You can write it as 3:13 or 3/13.

$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

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°