Write an algebraic expression to find the sum for each situation.
4. the varsity football team gained 7 yd on one play and then lost 4 yd.
5. the airplane descended 140 ft and then rose 112 ft.
6. the squirrel climbed 18 in. up a tree, slipped back 4 in., and then
climbed up 12 in. more.
7. the temperature was 72°f at noon. at midnight a cold front
moved in, dropping the temperature 12°f.

mental cunning

explanation:

he is often referred to as a man of twists and turns

a framing bias

step-by-step explanation:

rodrigo is subject to a framing bias i believe.

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.

the median is   36 orr sum like dat

step-by-step explanation: