Greg owns a clothing store where he designs T-shirts, t, and pairs of shorts, S.

He sells the T-shirts for $6 each and the shorts for $14. Greg can work 18

hours a day, at most. It takes him 30 minutes to design a T-shirt and an hour

and 30 minutes to design a pair of shorts. He must design at least 10 items

each day, but he cannot design more than 25 items in one day. Which set of

inequalities below represents this scenario?

O

A. S 2 10+ t, ss 25+ t, 1.55 s 36 -0.5t, s 2 0; t2 0

O

B. Ss 10-t, s 2 25- t S S 36-t s 2 0; +2 0

O

C. s 2 10-t, ss 25-t, s 2 36-t, s 2 0;12 0

D. S 2 10- tss 25 - 1, 0.5t + 1.58 < 18; s 2 0; 120

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

What is a property of a double replacement reaction

Read "who built the pyramids? ”. leave this link open while you answer the questions throughout the assignment. give at least two reasons why some people claim the pyramids of giza were constructed by aliens.