Ican't seem to answer this question may you guys me

Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earned $75 in interest.how much interest will she earn during the following year?