Tc + sc - td - sd = ? a) tscd b) (t + s)(c - d) c) (t - s)(c - d) d) (t - s)(c - d) (its not a)

tc + sc - td - sd = ?

tc-td + sc -sd

t(c-d) +s(c-d)

factor out the c-d

(c-d)(t+s)

Choice B

$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

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q