To determine the total cost of Tanya's classroom materials, we need to calculate the costs of photocopying and laminating separately and then sum them up.
### Step 1: Calculate the cost of photocopying
Tanya needs to photocopy 24 single-sided A4 pages in black and white.
- Cost of black-and-white photocopying per side: \$0.10
- Number of pages to photocopy: 24
[tex]\[
24 \text{ pages} \times \[tex]$0.10 \text{ per page} = \$[/tex]2.40
\][/tex]
### Step 2: Calculate the cost of laminating
#### Laminating A4 sheets
Tanya needs to laminate one A4 sheet.
- Cost of laminating one A4 sheet: \$2.45
- Number of A4 sheets to laminate: 1
[tex]\[
1 \text{ sheet} \times \[tex]$2.45 \text{ per sheet} = \$[/tex]2.45
\][/tex]
#### Laminating A3 sheets
Tanya needs to laminate two A3 sheets.
- Cost of laminating one A3 sheet: \$1.55
- Number of A3 sheets to laminate: 2
[tex]\[
2 \text{ sheets} \times \[tex]$1.55 \text{ per sheet} = \$[/tex]3.10
\][/tex]
### Step 3: Calculate the total cost
To find the total cost, sum the individual costs calculated above.
[tex]\[
\text{Total cost} = \text{Cost of photocopying} + \text{Cost of laminating A4 sheets} + \text{Cost of laminating A3 sheets}
\][/tex]
[tex]\[
\text{Total cost} = \[tex]$2.40 + \$[/tex]2.45 + \$3.10
\][/tex]
Summing these amounts:
[tex]\[
\text{Total cost} = \$7.95
\][/tex]
### Final Answer
The total cost for Tanya's classroom materials is:
[tex]\[
\$ \boxed{7.95}
\][/tex]
