Question

Pls questions 1-5
Greatly appreciated

Answer 1

All solutions are attached with step by step. I hope it's correct :)

Answer 2

Answer:

• (-50) + 49 = -1
• The square of 7 is 49.
• $(-3)^2 (-2)^3 =$72
• $\frac{1}{2} - \frac{1}{3} = \frac{2}{3}-$1/2
• 4: 7 ::64: 112

Step-by-step explanation:

1)  (-50) + 49 = -1

2) $7^2 = 7 \times 7 = 49$

The square of 7 is 49.

3)  $(-3)^2 (-2)^3 = 9 \times 8 = 72$

$\frac{1}{2} - \frac{1}{3} = \frac{3- 2}{6} = \frac{1}{6} \\ \frac{2}{3}- \frac{1}{6} = \frac{4 - 1}{6} =\frac{3}{6} =\frac{1}{2}$

4) 4: 7 ::64: d

$\frac{4}{7} =\frac{64}{d} \\4d = 64 \times 7\\d =\frac{64 \times 7}{4} \\d = 16 \times 7\\d = 112$