Max decides to empty his piggy bank and count his
money. His bank is filled with only nickels and dimes. Max counted a total of 45 coins that added up to $3.15. How many nickels and how many dimes does Max have in his piggy bank? Solve by using substitution or elimination.

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14