ImageView

Olá Marcelo, tudo bem?

Uma das formas seria utilizar o LinearLayout com orientation horizontal. Segue um exemplo de código que deixa as imagens lado a lado:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_lista_alunos"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">

    <ImageView
        android:layout_width="130dp"
        android:layout_height="130dp"
        android:background="@android:color/black" />

    <ImageView
        android:layout_width="130dp"
        android:layout_height="130dp"
        android:background="@android:color/holo_green_dark" />

    <ImageView
        android:layout_width="130dp"
        android:layout_height="130dp"
        android:background="@android:color/holo_red_dark" />
</LinearLayout>