Question

in the background dialogue box click ______ to apply the new background to all slides

Answer 1

Explanation:

Under the Design tab in the Background group, either click the Background Styles button and choose "Format Background..." or click the menu arrow to bring up the Format Background dialog. To apply the changes only to the current slide, click Close. To apply the changes to all the slides, click Apply To All.

Answer 2

Answer:

format background

Explanation:

hope it helps you!!