Aresearcher believes that eating all organic foods will improve blood pressure. so, the researcher studies groups as their diet is altered. describe the independent variable (treatment variable) and the dependent variable (the variable of interest).

make sure you answer all question

good luck!

cutie~

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

plz mark brainliest i took the test

40 i don’t know lololol