If you read the night me worth 30 points for good answers

c. mark studied for his math test with margie. this is the correct option.

"to study" is the infinitive and when this is used in the past, the final "y" turns into "i" and then the suffix "ed" is added.

these options are wrong:

a. mark is studying for his math test with margie. this is an instance of present continuous and the verb "to study" is in the present participle.

b. mark will study for his math test with margie. this is an instance of simple future, so the verb " to study" is in the bare infinitive.

4 if you know how to add

the correct answer is a) graphics and visual images.

procedural documents include graphics and visual images to the reader understand concepts that might be difficult to properly explain just using words.

a procedural document is one that explains or outline the step by step of a procedure, a list, a system, or a registration. in order to have a full and clear procedural document, the writer can and headlines or subheadlines. but if the writer wants to exemplify and the reader understand concepts that might be difficult to properly explain just using words, he needs to include graphics and visual images.