question Solve for x 23 12 532 12 x 5

If �:�=2:3x:y=2:3 and �:�=4:5y:z=4:5, what is �:�x:z?

A. 0.17013888889
B. 0.12847222222
C. 0.34375
D. 0.085416666667

If �+�=15a+b=15 and �−�=5a−b=5, what are the values of �a and �b?

A. �=10,�=5a=10,b=5
B. �=7,�=8a=7,b=8
C. �=8,�=7a=8,b=7
D. �=12,�=3a=12,b=3

Solve: 35×10753×710

A. 6776
B. 15141415
C. 3773
D. 2332

What is the result of 15 + 23?

A. 32
B. 38
C. 40
D. 48

What is the product of (−5)×8(−5)×8?

A. -13
B. -40
C. 40
D. 13

Solve: 56−1365−31

A. 1221
B. 1331
C. 1661
D. 2332

What is the value of 24×3224×32?

A. 48
B. 72
C. 144
D. 324

Express 3:5 as a ratio in its simplest form.

A. 0.043055555556
B. 0.085416666667
C. 0.12847222222
D. 0.17013888889

Solve: 4×(7−2)4×(7−2)

A. 16
B. 20
C. 22
D. 24

What is 15% of 80?

A. 8
B. 12
C. 15
D. 20