Valuate the expressions. Write your answer as a single base with a positive exponent. a^-10 x a^8

(b^-7)^2 x b^6
pls help

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

answer: 323 is how many she has ☃☃⛄❄

step-by-step explanation:

look in attachments

step-by-step explanation:

a = (-2, 0)

b= (-4, 0)

c = (-5,2)

d = (-1,2)

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