Gelo bought a wallet which costs php250at 12% discount and a belt which costs php230 at 25% discount. how much did he pay in all? a. php87.50
b. php392.50
c. php3925
d. php8750​

if x = 1, then the answer is 3.5

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2