Let A = {1, 2} and let B = {2, 3, 4}. Which of the following shows B ∆ A? A) {3, 4}
B) {1, 3, 4}
C) {(1,2), (1,3), (1,4), (2,2), (2,3), (2,4)}
D) {(2,1), (2,2), (3,1), (3,2), (4,1), (4,2)}

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²

$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

h= 12 inches

step-by-step explanation: