Factorise fully: 16-2c

2(8-c)

Step-by-step explanation:

First take our given numbers

16-2c

Now we must factor out the constants

We do that by dividing by 2

2(8-c)

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt

m∠a is 90°

m∠b is 40°