Answer:
B
Step-by-step explanation:
x² - 4x - 7 = 0
(x - 2)² = 11
year 1
cost = 1.03 (1500) = 1545
put 1545 in for x in year 2
year 2
1.03 * 1545 = 1591.35
put in 1591.35 in for x in year 3
year 3
1.03 *1591.35=1639.0905
round to the nearest cent
cost in three years: $1639.09
Choice C
The total number of students is 45 + 48 +40 = 133 students
1/2 * 133 ------ 3/4 * 133
(66.5 ; 99.75)
So we can say that b<span>etween 65 and 100 students packed their lunch</span>