I'm not sure about the proper subject verb agreement in the following sentences.

A boy and a girl make/makes a couple.

5 and 5 make/makes 10.

75 and 25 make/makes a hundred.

I understand that compound subjects usually take plural verbs, unless they form a collective idea- in which case it takes a singular verbs.

Can the subjects in these cases be considered a collective unit?

Can you help?

I'm not sure about the proper subject verb agreement in the following sentences.

A boy and a girl make/makes a couple.

5 and 5 make/makes 10.

75 and 25 make/makes a hundred.

Can you help?

ETA: I understand that compound subjects usually take plural verbs, unless they form a collective idea- in which case it takes a singular verbs.

Can the subjects in these cases be considered a collective unit?

I'm not sure about the proper subject verb agreement in the following sentences.

A boy and a girl make/makes a couple.

5 and 5 make/makes 10.

75 and 25 make/makes a hundred.

Can you help?

I'm not sure about the proper subject verb agreement in the following sentences.

A boy and a girl make/makes a couple.

5 and 5 make/makes 10.

75 and 25 make/makes a hundred.

I understand that compound subjects usually take plural verbs, unless they form a collective idea- in which case it takes a singular verbs.

Can the subjects in these cases be considered a collective unit?

Can you help?