SQL & PL/SQL :: Combine Two Independent Select Statements?

ive got two select statements which fetches data from different tables. I need to join the two result set . is it possible to do it from sql. Heres the query.

1)

SELECT
COUNT(CASE WHEN (INTERACTION_TYPE= 'EmailED' AND CONTACT_PARTY=1) THEN 1 END)CUSTOMER_EMAIL,
COUNT(CASE WHEN INTERACTION_TYPE= 'EmailED' AND CONTACT_PARTY=2 THEN 1 END)OTHER_EMAIL,

[Code]....

2)

SELECT
SUM (CHEQUE_TOTAL) CHEQUE_TOTAL
FROM RI_CHEQUE_VOUCHER_REFUND refund
INNER JOIN CH_CASE case ON (case.id = refund.id)
INNER JOIN EVA_ENTITY_DEFINITION ed ON (ed.name= 'ChequeRefundCaseED')
WHERE
case.creation_time<= SYSDATE
AND
case.creation_time>= SYSDATE-7

Again I need to combine the resultset.So the result would look like

Customer_Email Other_Email Customer_Whitemail Other_whitemail Customer_telephone Other_Telephone Cheque_total