Casey has n nickels. megan has 4 times as many nickels as casey has. write an expression for the total munber of nickels casey and megan have. then simplify the expression.

Total number of nickels Casey and Megan have:

Simplified:

Step-by-step explanation:

Megan has 4 times of Casey. So we multiply 4 with the number of nickels Casey have,

Total nickels of Casey and Megan = n + 4n

Simplified = n + 4n = 5n

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

details

step-by-step explanation: