Ernesto purchased 100 postage stamps worth $9.90. Half of them were 1c stamps and the rest we’re 14 cent and 22 cent stamps. How many 22 cent stamps did he buy?

"you know, playing tennis is healthier than watching a tennis match on television," katya remarked to her couch potato brother. in this sentence, healthier is a/an a. superlative. b. comparative. c. positive form. d. adverb.

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5