PA SOLVE NAMAN PO PLZ :( WITH BRIEF EXPLANATION PO SANA :(

CHECK ATTACHED PH-OTO

16. If y varies directly as the square of x, how is y changed if x is increased by 20%?
a. 44% decrease in y
c. 0.44% decrease in y
b. 44% increase in y
d. 0.44% increase in y

17. Jinky's income (i) varies directly as the number of days (n) that she works. If she earns Php 8,000.00 in 20 days, what equation represents the money she earns if she worked 3 times as long?
a. i = 3n
b. n = 3i
c. n = 3/i
d. i = n/3

18. w varies directly as x and inversely as p and q. If w = 12 when x = 4, p = 2 and q = 20, find w when x = 3, p=and q = 5.
a. 10
b. 9
c. 27
d. 5

19. Find an equation of variation in which y varies jointly as x and z and y = 45 when x = 18 and z = 10.
a. y = 4xz
b. y = 1/4 xz
c. y = -1/4 xz
d. y = -4xz

20. If h varies jointly as j^2 and i and inversely as g, and h = 50 when j = 2, i = 5, and g = 1/2, find h when
j = 4, i = 10, and g = 1/4
a. 25
b. 100
c. 800
d. 805

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FOUL/UNSURE A-NSWERS WILL BE R-PORTED AND DELETED! TYSM​​