Please help ill give brainliest (when I can) 4)The length and width of a rectangle are in a ratio 3: 1. If the width is 7 cm, then the length of the rectangle is: * 10 points
14 cm
16 cm
18 cm
21cm

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

answer is

b.

1.67

hope you get this right.