Which sentence correctly uses subject-verb agreement? tommy the clown, as well as the dancers, has agreed to perform at the high school prom. tommy the clown and crew has agreed to perform at the high school prom. tommy the clown’s dancers has agreed to perform at the high school prom. tommy the clown, as well as the dancers, are performing at the high school prom

C.

The subject and the verb agree with eachother.

So the answer is:

Tommy the clown, as well as the dancers, are preforming at the high school prom.

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.