Answer:
a) -4
b) +343
Step-by-step explanation:
a) 10 shares - loss $40
1 share --- ?
? = 40 / 10 = 4 decrease
b) each week 7 members increase for 49 weeks
so total increase = 7 * 49 = 343
Answer:

Step-by-step explanation:



Answer:
Step-by-step explanation:
2x + 2 + 5x + 3 = 180
7x + 5 = 180
7x = 175
x = 25
I multiplied 17.5 times 2.48 and got 43.4
If I=P*r*t, we can input 450 in for I, 3000 in for the principal (P, or the starting rate), and 3 for t=time because there were three years, resulting in 450=9000*r. Next, we can divide both sides by 9000 to get 0.05 or 5% as our answer.