Pls help im timed Leticia simplified an expression. Her work is shown below.

4.5 divided by one-fourth + 2 and one-half minus 0.75 times 8
Step 1 18 + 2 and one-half minus 0.75 times 8
Step 2 18 + 1.75 times 8
Step 3 18 + 14
Step 4 32

Where did Leticia make her first mistake?
step 1
step 2
step 3
step 4

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

How much orange juice do you need to make 2 servings of lemony orange slush?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total