Sagot :
Answer: there are 24 orders/ways in visiting the four stores!! pa-brainliest
Explanation:
let book store-bs
pet store-ps
record store-rs
store shoe- ss
bs-ps-rs-ss
bs-ps-rs-ss
bs-rs-ss-ps
bs-ps-rs-ss
bs-ss-ps-rs
bs-ss-rs-ps
ps-rs-ss-bs
ps-rs-ss-bs
ps-ss-bs-rs
ps-rs-ss-bs
ps-bs-ss-rs
ps-bs-rs-ss
rs-ss-bs-ps
rs-ss-ps-bs
rs-bs-ps-ss
rs-bs-ss-ps
rs-ps-bs-ss
rs-ps-ss-bs
ss-bs-rs-ps
ss-bs-ps-rs
ss-ps-bs-rs
ss-ps-rs-bs
ss-rs-ps-bs
ss-rs-bs-ps