What is the value of D in the matrix equation below? BER
D+
-15
8
-4
0
7
-14
12

20 solve 2(4 x + 3) < 5 x + 21. a) { x | x < 9} b) { x | x > -5} c) { x | x > -9} d) { x | x < 5}

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

George writes the mixed number as sum and uses the distributive property 1/2.-2/5=1/2-2+2/5=1/2