One doughnut cost $0.90 and one coffee cost $1.40
4/5 - 3/8 equals 17/40 or 0.425
Answer:
x^2+5x+6
Step-by-step explanation:
(x+3)(x+2)=x^2+3x+2x+6=x^2+5x+6
Can we get a picture please
Answer:
14.2 years
Step-by-step explanation:
The multiplier of the population each year is 1 +5% = 1.05, so after n years the population has been multiplied by 1.05^n. You want to find the value of n that makes this expression equal to 2:
2 = 1.05^n
log(2) = n·log(1.05) . . . . . take logarithms
log(2)/log(1.05) = n ≈ 14.2
Growing at a rate of 5% per year, it will take about 14.2 years for the population to double.