Answer:
inches.
Explanation:
Please find the attached file for the line plot.
We are asked to find the total length of 3/4 inch buttons, if Kara lines up all.
We can see from our given line plot that there are 3 buttons having 3/4 inch length.
To find the total length of 3/4 inch buttons, we will multiply 3 by length of one button that is 3/4 as shown below:
![\text{Total length of }(3)/(4)\text{ inch buttons}=3* (3)/(4)](https://img.qammunity.org/2020/formulas/mathematics/high-school/3kswhw6tdwdegpnyvkmmgoapcvlvich1fv.png)
![\text{Total length of }(3)/(4)\text{ inch buttons}=(3* 3)/(4)](https://img.qammunity.org/2020/formulas/mathematics/high-school/zimxcct2xudgkns6oselsqyy2oh28gi0p2.png)
![\text{Total length of }(3)/(4)\text{ inch buttons}=(9)/(4)](https://img.qammunity.org/2020/formulas/mathematics/high-school/oifbgt8o7zsnpc1hv8xhrm1oyvkpem9l54.png)
Convert to mixed fraction:
![\text{Total length of }(3)/(4)\text{ inch buttons}=(4* 2+1)/(4)](https://img.qammunity.org/2020/formulas/mathematics/high-school/r47tz0p1cmld0bj6qp7hdfrb3hgv2ob1n8.png)
![\text{Total length of }(3)/(4)\text{ inch buttons}=2(1)/(4)](https://img.qammunity.org/2020/formulas/mathematics/high-school/i5ov0dmtlc56zu48eojh77g37xl6ka4dpd.png)
Therefore, the total length will be
inches, if Kara lines up all the 3/4-inch buttons.