The cell phone cost is $124.65 per month. With 12 months in a year, we multiply $124.65 x 12 to get the answer $1,507.80. Since one year equals $1,507.80, we multiply this answer by 3 for 3 years to get $4,523.40. Thus three years of service with $124.65 a month would equal $4,523.40.
The area of the resulting figure will be given by: ∫f(x)dx f(x)=13/2x^3 thus ∫f(x)dx=13/2∫x³dx=13/8[x^4] integrating over the inerval 13/8(12^4)-13/8(5^4) =32680+3/8 sq. units =
