1: 16cm3 = mm3 2: 85000dm3 = m3
3:4 L= cL
4: 5000 mL= L
5: 25000mm3 = cm3

Sorry about the cm3 the number 3 should be up on cm but my phone doesn't have that future.

THANKS FOR THE ANSWER! ​
its MEASUREMENT!

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: