Which of the following are true statements about any regular polygon? check all that apply.
a. all of its angles measure 90.
b. it is a quadrilateral.
c. it is a closed figure.
d. it is a hexagon.
e. all of its angles have equal measures.
f. its sides are congruent line segments.

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Can someone check if i did this correct. it’s number 4 if you’re wondering.