Please help me with these algebra questions. Image attached.

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Someone me what is the area of this figure? 18m 18m 8m 16m

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re