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Solve 2a + b = 3 4a - 5b = 20 My attempt Multiply the first equation by 5 So, 10a + 5b = 15 4a - 5b = 20 Add them together 14a = 35 Divide both sides by 14 a = 2.5 Substitute (I have done it with the second one) 10 - 5b = 20 Take away 10 from both sides 5...

Solve 2a + b = 3 4a - 5b = 20 My attempt Multiply the first equation by 5 So, 10a + 5b = 15 4a - 5b = 20 Add them together 14a = 35 Divide both sides by 14 a = 2.5 Substitute (I have done it with the second one) 10 - 5b = 20 Take away 10 from both sides 5...

(6.2 x 10^-3)(9 x 10^11) evaluate expression, write in standard notation

1.)Animated characters have only been included in live action movies for the past ten years. True or False* All of the following are primary colors except Red Blue *Green Yellow

Will Africa ever benefit from its natural resources?

Thanks Very much appreciated☆

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