П
(5ab)
Which expression is equivalent to
3026
? Assume a 0,00
a bº
125a18 21
30
25 a 64
6
25a10
6
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Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2