At the beginning of the school year, Jayden's mother put $80 in his cafeteria account. Each time Jayden orders lunch, it deducts $2.75 from his account balance.

Step-by-step explanation:

Given

Required

Model the situation using an equation

Represent the number of orders with n

Represent the balance with y

y is calculated as:

We used minus because the amount is being deducted

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²