How to solve it don't understand a thing

1) 40ft^2

2)320mm^2

3) 96m^2

Step-by-step explanation:

first one

find the area of the bigger rectangle (80)

find the area of the inner rectangle (40)

subtract the bigger one from the smaller one(80-40=40)

shaded area is 40ft^2

second one

find the area as if it were a rectangle(720 cm)

find the area of the inner(400cm)

subtract the bigger from the smaller(720-400=320)

320mm^2

third

find area of the big square(196)

find area of one tiny unshaded square(25)

since all are the same 25x4 is 100

196-100=96

answer;96m^2

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

they go with it happens or they mite give a chance?

step-by-step explanation: