6 Alejandra y Marcos compraron lápices de colores. Alejandra compró "a" lápices y
Marcos compró el triple que Alejandra. ¿Cuál es la expresión algebraica que representa
el total de lápices que compraron?
A.
a
В.
3a
C.
a + 3
D. a + 3a
7
En una fábrica de ropa cada trabajador elabora 10 prendas diarias. Si hay "X"
trabajadores, ¿cuál expresión algebraica representa el total de prendas elaboradas
en un dia?
А. Х
B.
10x
C. X + 10
D. x + 10 x​

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition

In the diagram of circle o, what is the measure of zabc?