Ineed concerning these credit card and compound monthly problems.

compound interest formula: a = p(1+r/n)^nt

a = amount ( principal + interest)

p = principal ( amount invested)

r = interest rate

n = number of times it is compounded)

t = the time the money was in the bank.

1. p = 12000. r = 4% and n = 12 ( compounded monthly.)

the formula becomes:

a(t) = 1200(1+0.04/12)^12t

2. when compounded continuously, the (1+r/n) in the above formula is replaced with the letter e, which is a mathematical constant and the n is replaced with the rate.

the formula would be :

a(t) = 1200e^0.16t

76%

step-by-step explanation:

24% are dogs and the remaining is 76% because 100-24=76

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°