A. Supply the missing value, if you varies jointly as x and z, then, y=kxz; x=y/kz; z=y/kxz? B. Supply the missing value. if y varies directly as x and inversely to z then, y=kx/z; k=you/x; x=yz/k; z=kx/y?

Pls paki ayusin po ang pag sagot para malaman ko kung ano pa ang sagot jan.

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?