Find the base of a parallelogram with height 6 5/8 and area 26 1/2 square feet

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50