Step-by-step explanation:
Type A cost 4.05 dollars per pound
Type B cost 5.55 dollars per pound
now...since type A is four times larger than Type B for that month,.the ratio will be 4:1 respectively
total cost was 735 dollars out of which Type A has
4/5 × 735 = 588 dollars while Type B has 1/5 × 735 = 147 dollars
so therefore ....number of pounds of A = 588/4.05=145.18pounds
and number of Pounds of B = 147/5.55= 26.48pounds