Answer:
49
Step-by-step explanation:
28-21=7
7 to the power of two is the same as 7(7)
7(7)=49
4 times y = -10
-10/4 = -2.5
y = -2.5
do u take links bcs i can give u a link to the answer if u want
Area of a rectangle= L×B
=8.26cm×5.5cm
=45.43cm square