To find out how much Shannon saved, we need to calculate the total discount on the original prices of the goalie gloves and shin guards.
The original price of the goalie gloves is $30, and the original price of the shin guards is $15.
Since everything is 20% off, Shannon will receive a 20% discount on both items.
To calculate the discount for the goalie gloves, we multiply the original price ($30) by 20% (0.20):
Discount on goalie gloves = $30 * 0.20 = $6
To calculate the discount for the shin guards, we multiply the original price ($15) by 20% (0.20):
Discount on shin guards = $15 * 0.20 = $3
To find out how much Shannon saved all together, we add the discount on the goalie gloves ($6) and the discount on the shin guards ($3):
Total savings = $6 + $3 = $9
Therefore, Shannon saved $9 all together.
The correct answer is A) $9.00.