Jillian is shopping for new school supplies. she finds a flyer in the newspaper for
her favorite store. they are offering the following coupons. jillian needs to buy a
new laptop for the school year. the list price for the laptop is $479.99. is it a better
deal to use the coupon for the $100 rebate or the 20% off one item? explain your
reasoning.

Rebate

Step-by-step explanation:

To see which is a better deal, solve each one and compare.

$100 off                                        20% off

$479.99-$100                              $479.99*(1-.2)    

$379.99                                        $479.99*.8

                                                     $383.99

So, it is cheaper with the rebate because it costs less.

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°