Johnson has a corporate proposal. The probability that vice-president Adams will approve the proposal is 0.3. If VP Adams approves the proposal, then the probability that vice-president Baker will approve the proposal is 0.4. If VP Adams doesn’t approve the proposal, then the probability that vice-president Baker will approve the proposal is 0.3. What is the probability that at least one of the two VPs, approves Johnson’s proposal? Pick one:
A) 0.12	B) 0.42	C) 0.28	D) 0.48	E) 0.72
(1at approves * second rejects ) + (1st rejects * 2nd approves ) + (both approves )   =0.3*0.2+0.4*0.3+0.6*0.4   = 0.06+0.12+0.24= 
<gadget id="calculator">0.06+0.12+0.24</gadget>
<output>0.42</output>
0.42   0.42
<result>B</result>
Johnson has a corporate proposal. The probability that vice-president Adams will approve the proposal is 0.3. If VP Adams approves the proposal, then the probability that vice-president Baker will approve the proposal is 0.4. If VP Adams doesn’t approve the proposal, then the probability that vice-president Baker will approve the proposal is 0.3. What is the probability that at least one of the two VPs, approves Johnson’s proposal?