Answer:
AD = 13
Step-by-step explanation:
Area of trapezoid ABCD

Answer:
$35
Step-by-step explanation:
Using the formula provided, d=(p−c)÷2 (where d is the discount, p is the original price, and c is the store's cost for the dress.) we can determine the discount.
The original price is 120,
d=(120−c)÷2
The store's cost is 50,
d=(120−50)÷2
So we subtract 120 and 50 to get
d=(70)÷2
70 divide by two is
d= 35
The discount is $35
X + 13 = -4
x = -4 - 13
x = - 17
I am thinking it is the first one..solution is -17
Yes it is a arithmetic sequence this is because you are adding 8 to each number to get the result of the next number