You have total coins for a total of $. . You only have quarters and dimes. Let represent the number of quarters and represent the number of dimes. Write an equation to represent the number of coins you have.

answer: 0.26

i used the calculator on google

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.