Estimate a 20% tip on a check for $34.30

20% Tip = $6.86

Total amount spent (including check) = $41.16

Step-by-step explanation:

20% of $34.30

20% = 0.2

0.2($34.3)

$6.86

Tip = $6.86

Total amount spent = $6.86 + $34.30 = $41.16

Hope this helps :)

step-by-step explanation:

the true ones are a b and d

a magnifying glass is a convex lens which produces a magnified image of an object. for a magnified image to be observed the distance between the object and the lens has to be shorter than the focal length of the lens.