Carl wants to find the product 30×56. Which of the following best explains how he can find the product mentally?
A.

He knows that 30÷5 is 6. He then multiplies 6 by 6 to get 36.
B.

He knows that 30×66is 30. He then subtracts 1 from 30 to get 29.
C.

He knows that 3×6=18. He then adds 18 and 5 to get 23.
D.

He knows that 30×16is 5. He then multiplies 5 by 5 to get 25.

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !

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.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41