An airplane was cruising at 23,000 feet altitude. Due to turbulence it dropped 4,300 feet. Once the air currents leveled off he went back up 3,600 feet. How far was he from his original cruising altitude?

-700 feet, aka 700 feet below/away from the original cruising altitude

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40